# libust and '.' (that contains the linker script). However, '.'
# must be installed after libust so it can overwrite libust.so with
# the linker script.
-SUBDIRS = snprintf liblttng-sessiond-comm libringbuffer libust include doc tests
+SUBDIRS = snprintf liblttng-ust-comm libringbuffer libust include doc tests
#temporarily disabled
# . libustinstr-malloc libustfork
doc/man/Makefile
doc/info/Makefile
include/Makefile
- liblttng-sessiond-comm/Makefile
+ liblttng-ust-comm/Makefile
libringbuffer/Makefile
libust/Makefile
tests/Makefile
# note: usterr-signal-safe.h, core.h and share.h need namespace cleanup.
noinst_HEADERS = \
- lttng-sessiond-comm.h \
+ lttng-ust-comm.h \
usterr.h \
ust_snprintf.h \
ust/compat.h \
+++ /dev/null
-#ifndef _LTTNG_SESSIOND_COMM_H
-#define _LTTNG_SESSIOND_COMM_H
-
-/*
- * Copyright (C) 2011 - David Goulet <david.goulet@polymtl.ca>
- * Julien Desfossez <julien.desfossez@polymtl.ca>
- * Mathieu Desnoyers <mathieu.desnoyers@efficios.com>
- *
- * This program is free software; you can redistribute it and/or
- * modify it under the terms of the GNU General Public License
- * as published by the Free Software Foundation; only version 2
- * of the License.
- *
- * This program is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
- * GNU General Public License for more details.
- *
- * You should have received a copy of the GNU General Public License
- * along with this program; if not, write to the Free Software
- * Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.
- */
-
-/*
- * This header is meant for liblttng and libust internal use ONLY.
- * These declarations should NOT be considered stable API.
- */
-
-#include <limits.h>
-#include <lttng/lttng.h>
-
-#define LTTNG_RUNDIR "/var/run/lttng"
-
-/* Default unix socket path */
-#define DEFAULT_GLOBAL_CLIENT_UNIX_SOCK LTTNG_RUNDIR "/client-ltt-sessiond"
-#define DEFAULT_GLOBAL_APPS_UNIX_SOCK LTTNG_RUNDIR "/apps-ltt-sessiond"
-#define DEFAULT_HOME_APPS_UNIX_SOCK "%s/.apps-ltt-sessiond"
-#define DEFAULT_HOME_CLIENT_UNIX_SOCK "%s/.client-ltt-sessiond"
-
-/* Queue size of listen(2) */
-#define MAX_LISTEN 10
-
-#define LTTNG_UST_COMM_VERSION_MAJOR 0
-#define LTTNG_UST_COMM_VERSION_MINOR 1
-
-/* Get the error code index from 0 since
- * LTTCOMM_OK start at 1000
- */
-#define LTTCOMM_ERR_INDEX(code) (code - LTTCOMM_OK)
-
-enum lttcomm_ust_command {
- LTTNG_UST_CREATE_SESSION,
- LTTNG_UST_RELEASE_SESSION,
- LTTNG_UST_VERSION,
- LTTNG_UST_LIST_TRACEPOINTS,
- LTTNG_UST_WAIT_QUIESCENT,
- LTTNG_UST_CALIBRATE,
-
- /* Apply on session handle */
- LTTNG_UST_METADATA, /* release with LTTNG_UST_RELEASE_CHANNEL */
- LTTNG_UST_CHANNEL,
- LTTNG_UST_RELEASE_CHANNEL,
- LTTNG_UST_SESSION_START,
- LTTNG_UST_SESSION_STOP,
-
- /* Apply on channel handle */
- LTTNG_UST_STREAM,
- LTTNG_UST_RELEASE_STREAM,
- LTTNG_UST_EVENT,
- LTTNG_UST_RELEASE_EVENT,
-
- /* Apply on event and channel handle */
- LTTNG_UST_CONTEXT,
- LTTNG_UST_RELEASE_CONTEXT,
-
- /* Apply on event, channel and session handle */
- LTTNG_UST_ENABLE,
- LTTNG_UST_DISABLE,
-};
-
-/*
- * lttcomm error code.
- */
-enum lttcomm_return_code {
- LTTCOMM_OK = 1000, /* Ok */
- LTTCOMM_ERR, /* Unknown Error */
- LTTCOMM_UND, /* Undefine command */
- LTTCOMM_NOT_IMPLEMENTED, /* Command not implemented */
- LTTCOMM_UNKNOWN_DOMAIN, /* Tracing domain not known */
- LTTCOMM_ALLOC_FAIL, /* Trace allocation fail */
- LTTCOMM_NO_SESSION, /* No session found */
- LTTCOMM_CREATE_FAIL, /* Create trace fail */
- LTTCOMM_SESSION_FAIL, /* Create session fail */
- LTTCOMM_START_FAIL, /* Start tracing fail */
- LTTCOMM_STOP_FAIL, /* Stop tracing fail */
- LTTCOMM_LIST_FAIL, /* Listing apps fail */
- LTTCOMM_NO_APPS, /* No traceable application */
- LTTCOMM_SESS_NOT_FOUND, /* Session name not found */
- LTTCOMM_NO_TRACE, /* No trace exist */
- LTTCOMM_FATAL, /* Session daemon had a fatal error */
- LTTCOMM_NO_TRACEABLE, /* Error for non traceable app */
- LTTCOMM_SELECT_SESS, /* Must select a session */
- LTTCOMM_EXIST_SESS, /* Session name already exist */
- LTTCOMM_NO_EVENT, /* No event found */
- LTTCOMM_KERN_NA, /* Kernel tracer unavalable */
- LTTCOMM_KERN_EVENT_EXIST, /* Kernel event already exists */
- LTTCOMM_KERN_SESS_FAIL, /* Kernel create session failed */
- LTTCOMM_KERN_CHAN_FAIL, /* Kernel create channel failed */
- LTTCOMM_KERN_CHAN_NOT_FOUND, /* Kernel channel not found */
- LTTCOMM_KERN_CHAN_DISABLE_FAIL, /* Kernel disable channel failed */
- LTTCOMM_KERN_CHAN_ENABLE_FAIL, /* Kernel enable channel failed */
- LTTCOMM_KERN_CONTEXT_FAIL, /* Kernel add context failed */
- LTTCOMM_KERN_ENABLE_FAIL, /* Kernel enable event failed */
- LTTCOMM_KERN_DISABLE_FAIL, /* Kernel disable event failed */
- LTTCOMM_KERN_META_FAIL, /* Kernel open metadata failed */
- LTTCOMM_KERN_START_FAIL, /* Kernel start trace failed */
- LTTCOMM_KERN_STOP_FAIL, /* Kernel stop trace failed */
- LTTCOMM_KERN_CONSUMER_FAIL, /* Kernel consumer start failed */
- LTTCOMM_KERN_STREAM_FAIL, /* Kernel create stream failed */
- LTTCOMM_KERN_DIR_FAIL, /* Kernel trace directory creation failed */
- LTTCOMM_KERN_DIR_EXIST, /* Kernel trace directory exist */
- LTTCOMM_KERN_NO_SESSION, /* No kernel session found */
- LTTCOMM_KERN_LIST_FAIL, /* Kernel listing events failed */
- KCONSUMERD_COMMAND_SOCK_READY, /* when kconsumerd command socket ready */
- KCONSUMERD_SUCCESS_RECV_FD, /* success on receiving fds */
- KCONSUMERD_ERROR_RECV_FD, /* error on receiving fds */
- KCONSUMERD_POLL_ERROR, /* Error in polling thread in kconsumerd */
- KCONSUMERD_POLL_NVAL, /* Poll on closed fd */
- KCONSUMERD_POLL_HUP, /* All fds have hungup */
- KCONSUMERD_EXIT_SUCCESS, /* kconsumerd exiting normally */
- KCONSUMERD_EXIT_FAILURE, /* kconsumerd exiting on error */
- KCONSUMERD_OUTFD_ERROR, /* error opening the tracefile */
- KCONSUMERD_SPLICE_EBADF, /* EBADF from splice(2) */
- KCONSUMERD_SPLICE_EINVAL, /* EINVAL from splice(2) */
- KCONSUMERD_SPLICE_ENOMEM, /* ENOMEM from splice(2) */
- KCONSUMERD_SPLICE_ESPIPE, /* ESPIPE from splice(2) */
- /* MUST be last element */
- LTTCOMM_NR, /* Last element */
-};
-
-#define LTTNG_SYM_NAME_LEN 128
-
-enum lttng_ust_instrumentation {
- LTTNG_UST_TRACEPOINT = 0,
- LTTNG_UST_PROBE = 1,
- LTTNG_UST_FUNCTION = 2,
-};
-
-enum lttng_ust_output {
- LTTNG_UST_MMAP = 0,
-};
-
-struct lttng_ust_tracer_version {
- uint32_t version;
- uint32_t patchlevel;
- uint32_t sublevel;
-};
-
-struct lttng_ust_channel {
- int overwrite; /* 1: overwrite, 0: discard */
- uint64_t subbuf_size; /* in bytes */
- uint64_t num_subbuf;
- unsigned int switch_timer_interval; /* usecs */
- unsigned int read_timer_interval; /* usecs */
- enum lttng_ust_output output; /* output mode */
-};
-
-struct lttng_ust_event {
- char name[LTTNG_SYM_NAME_LEN]; /* event name */
- enum lttng_ust_instrumentation instrumentation;
- /* Per instrumentation type configuration */
- union {
- } u;
-};
-
-enum lttng_ust_context_type {
- LTTNG_KERNEL_CONTEXT_VTID = 0,
-};
-
-struct lttng_ust_context {
- enum lttng_ust_context_type ctx;
- union {
- } u;
-};
-
-/*
- * Data structure for the commands sent from sessiond to UST.
- */
-struct lttcomm_ust_msg {
- uint32_t cmd_type; /* enum lttcomm_ust_command */
- uint32_t handle;
- union {
- struct lttng_ust_tracer_version version;
- struct lttng_ust_channel channel;
- struct lttng_ust_event event;
- struct lttng_ust_context context;
- } u;
-};
-
-/*
- * Data structure for the response from UST to the session daemon.
- * cmd_type is sent back in the reply for validation.
- */
-struct lttcomm_ust_reply {
- uint32_t cmd_type; /* enum lttcomm_sessiond_command */
- uint32_t ret_code; /* enum enum lttcomm_return_code */
- uint32_t ret_val; /* return value */
- union {
- } u;
-};
-
-extern int lttcomm_create_unix_sock(const char *pathname);
-extern int lttcomm_connect_unix_sock(const char *pathname);
-extern int lttcomm_accept_unix_sock(int sock);
-extern int lttcomm_listen_unix_sock(int sock);
-extern int lttcomm_close_unix_sock(int sock);
-/* Send fd(s) over a unix socket. */
-extern ssize_t lttcomm_send_fds_unix_sock(int sock, void *buf, int *fds,
- size_t nb_fd, size_t len);
-extern ssize_t lttcomm_recv_unix_sock(int sock, void *buf, size_t len);
-extern ssize_t lttcomm_send_unix_sock(int sock, void *buf, size_t len);
-extern const char *lttcomm_get_readable_code(enum lttcomm_return_code code);
-
-#endif /* _LTTNG_SESSIOND_COMM_H */
--- /dev/null
+#ifndef _LTTNG_UST_COMM_H
+#define _LTTNG_UST_COMM_H
+
+/*
+ * Copyright (C) 2011 - David Goulet <david.goulet@polymtl.ca>
+ * Julien Desfossez <julien.desfossez@polymtl.ca>
+ * Mathieu Desnoyers <mathieu.desnoyers@efficios.com>
+ *
+ * This program is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU General Public License
+ * as published by the Free Software Foundation; only version 2
+ * of the License.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program; if not, write to the Free Software
+ * Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.
+ */
+
+/*
+ * This header is meant for liblttng and libust internal use ONLY.
+ * These declarations should NOT be considered stable API.
+ */
+
+#include <limits.h>
+#include <lttng/lttng.h>
+#include <ust/lttng-ust-abi.h>
+
+#define LTTNG_RUNDIR "/var/run/lttng"
+
+/* Default unix socket path */
+#define DEFAULT_GLOBAL_CLIENT_UNIX_SOCK LTTNG_RUNDIR "/client-ltt-sessiond"
+#define DEFAULT_GLOBAL_APPS_UNIX_SOCK LTTNG_RUNDIR "/apps-ltt-sessiond"
+#define DEFAULT_HOME_APPS_UNIX_SOCK "%s/.apps-ltt-sessiond"
+#define DEFAULT_HOME_CLIENT_UNIX_SOCK "%s/.client-ltt-sessiond"
+
+/* Queue size of listen(2) */
+#define MAX_LISTEN 10
+
+/* Get the error code index from 0 since
+ * LTTCOMM_OK start at 1000
+ */
+#define LTTCOMM_ERR_INDEX(code) (code - LTTCOMM_OK)
+
+enum lttcomm_ust_command {
+ UST_CREATE_SESSION,
+ UST_RELEASE_SESSION,
+ UST_VERSION,
+ UST_LIST_TRACEPOINTS,
+ UST_WAIT_QUIESCENT,
+ UST_CALIBRATE,
+
+ /* Apply on session handle */
+ UST_METADATA, /* release with UST_RELEASE_CHANNEL */
+ UST_CHANNEL,
+ UST_RELEASE_CHANNEL,
+ UST_SESSION_START,
+ UST_SESSION_STOP,
+
+ /* Apply on channel handle */
+ UST_STREAM,
+ UST_RELEASE_STREAM,
+ UST_EVENT,
+ UST_RELEASE_EVENT,
+
+ /* Apply on event and channel handle */
+ UST_CONTEXT,
+ UST_RELEASE_CONTEXT,
+
+ /* Apply on event, channel and session handle */
+ UST_ENABLE,
+ UST_DISABLE,
+};
+
+/*
+ * lttcomm error code.
+ */
+enum lttcomm_return_code {
+ LTTCOMM_OK = 1000, /* Ok */
+ LTTCOMM_ERR, /* Unknown Error */
+ LTTCOMM_UND, /* Undefine command */
+ LTTCOMM_NOT_IMPLEMENTED, /* Command not implemented */
+ LTTCOMM_UNKNOWN_DOMAIN, /* Tracing domain not known */
+ LTTCOMM_ALLOC_FAIL, /* Trace allocation fail */
+ LTTCOMM_NO_SESSION, /* No session found */
+ LTTCOMM_CREATE_FAIL, /* Create trace fail */
+ LTTCOMM_SESSION_FAIL, /* Create session fail */
+ LTTCOMM_START_FAIL, /* Start tracing fail */
+ LTTCOMM_STOP_FAIL, /* Stop tracing fail */
+ LTTCOMM_LIST_FAIL, /* Listing apps fail */
+ LTTCOMM_NO_APPS, /* No traceable application */
+ LTTCOMM_SESS_NOT_FOUND, /* Session name not found */
+ LTTCOMM_NO_TRACE, /* No trace exist */
+ LTTCOMM_FATAL, /* Session daemon had a fatal error */
+ LTTCOMM_NO_TRACEABLE, /* Error for non traceable app */
+ LTTCOMM_SELECT_SESS, /* Must select a session */
+ LTTCOMM_EXIST_SESS, /* Session name already exist */
+ LTTCOMM_NO_EVENT, /* No event found */
+ LTTCOMM_KERN_NA, /* Kernel tracer unavalable */
+ LTTCOMM_KERN_EVENT_EXIST, /* Kernel event already exists */
+ LTTCOMM_KERN_SESS_FAIL, /* Kernel create session failed */
+ LTTCOMM_KERN_CHAN_FAIL, /* Kernel create channel failed */
+ LTTCOMM_KERN_CHAN_NOT_FOUND, /* Kernel channel not found */
+ LTTCOMM_KERN_CHAN_DISABLE_FAIL, /* Kernel disable channel failed */
+ LTTCOMM_KERN_CHAN_ENABLE_FAIL, /* Kernel enable channel failed */
+ LTTCOMM_KERN_CONTEXT_FAIL, /* Kernel add context failed */
+ LTTCOMM_KERN_ENABLE_FAIL, /* Kernel enable event failed */
+ LTTCOMM_KERN_DISABLE_FAIL, /* Kernel disable event failed */
+ LTTCOMM_KERN_META_FAIL, /* Kernel open metadata failed */
+ LTTCOMM_KERN_START_FAIL, /* Kernel start trace failed */
+ LTTCOMM_KERN_STOP_FAIL, /* Kernel stop trace failed */
+ LTTCOMM_KERN_CONSUMER_FAIL, /* Kernel consumer start failed */
+ LTTCOMM_KERN_STREAM_FAIL, /* Kernel create stream failed */
+ LTTCOMM_KERN_DIR_FAIL, /* Kernel trace directory creation failed */
+ LTTCOMM_KERN_DIR_EXIST, /* Kernel trace directory exist */
+ LTTCOMM_KERN_NO_SESSION, /* No kernel session found */
+ LTTCOMM_KERN_LIST_FAIL, /* Kernel listing events failed */
+ KCONSUMERD_COMMAND_SOCK_READY, /* when kconsumerd command socket ready */
+ KCONSUMERD_SUCCESS_RECV_FD, /* success on receiving fds */
+ KCONSUMERD_ERROR_RECV_FD, /* error on receiving fds */
+ KCONSUMERD_POLL_ERROR, /* Error in polling thread in kconsumerd */
+ KCONSUMERD_POLL_NVAL, /* Poll on closed fd */
+ KCONSUMERD_POLL_HUP, /* All fds have hungup */
+ KCONSUMERD_EXIT_SUCCESS, /* kconsumerd exiting normally */
+ KCONSUMERD_EXIT_FAILURE, /* kconsumerd exiting on error */
+ KCONSUMERD_OUTFD_ERROR, /* error opening the tracefile */
+ KCONSUMERD_SPLICE_EBADF, /* EBADF from splice(2) */
+ KCONSUMERD_SPLICE_EINVAL, /* EINVAL from splice(2) */
+ KCONSUMERD_SPLICE_ENOMEM, /* ENOMEM from splice(2) */
+ KCONSUMERD_SPLICE_ESPIPE, /* ESPIPE from splice(2) */
+ /* MUST be last element */
+ LTTCOMM_NR, /* Last element */
+};
+
+/*
+ * Data structure for the commands sent from sessiond to UST.
+ */
+struct lttcomm_ust_msg {
+ uint32_t cmd_type; /* enum lttcomm_ust_command */
+ uint32_t handle;
+ union {
+ struct lttng_ust_tracer_version version;
+ struct lttng_ust_channel channel;
+ struct lttng_ust_event event;
+ struct lttng_ust_context context;
+ } u;
+};
+
+/*
+ * Data structure for the response from UST to the session daemon.
+ * cmd_type is sent back in the reply for validation.
+ */
+struct lttcomm_ust_reply {
+ uint32_t cmd_type; /* enum lttcomm_sessiond_command */
+ uint32_t ret_code; /* enum enum lttcomm_return_code */
+ uint32_t ret_val; /* return value */
+ union {
+ } u;
+};
+
+extern int lttcomm_create_unix_sock(const char *pathname);
+extern int lttcomm_connect_unix_sock(const char *pathname);
+extern int lttcomm_accept_unix_sock(int sock);
+extern int lttcomm_listen_unix_sock(int sock);
+extern int lttcomm_close_unix_sock(int sock);
+/* Send fd(s) over a unix socket. */
+extern ssize_t lttcomm_send_fds_unix_sock(int sock, void *buf, int *fds,
+ size_t nb_fd, size_t len);
+extern ssize_t lttcomm_recv_unix_sock(int sock, void *buf, size_t len);
+extern ssize_t lttcomm_send_unix_sock(int sock, void *buf, size_t len);
+extern const char *lttcomm_get_readable_code(enum lttcomm_return_code code);
+
+#endif /* _LTTNG_UST_COMM_H */
#define LTTNG_UST_SYM_NAME_LEN 128
+#define LTTNG_UST_COMM_VERSION_MAJOR 0
+#define LTTNG_UST_COMM_VERSION_MINOR 1
+
enum lttng_ust_instrumentation {
LTTNG_UST_TRACEPOINT = 0,
+ LTTNG_UST_PROBE = 1,
+ LTTNG_UST_FUNCTION = 2,
};
-/*
- * LTTng consumer mode
- */
enum lttng_ust_output {
- LTTNG_UST_MMAP = 0,
+ LTTNG_UST_MMAP = 0,
};
-/*
- * LTTng DebugFS ABI structures.
- */
+struct lttng_ust_tracer_version {
+ uint32_t version;
+ uint32_t patchlevel;
+ uint32_t sublevel;
+};
struct lttng_ust_channel {
int overwrite; /* 1: overwrite, 0: discard */
uint64_t num_subbuf;
unsigned int switch_timer_interval; /* usecs */
unsigned int read_timer_interval; /* usecs */
- enum lttng_ust_output output; /* mmap */
+ enum lttng_ust_output output; /* output mode */
};
struct lttng_ust_event {
} u;
};
-struct lttng_ust_tracer_version {
- uint32_t version;
- uint32_t patchlevel;
- uint32_t sublevel;
-};
-
enum lttng_ust_context_type {
LTTNG_UST_CONTEXT_VTID = 0,
};
#define LTTNG_UST_ENABLE _UST_CMD(0x80)
#define LTTNG_UST_DISABLE _UST_CMD(0x81)
+void lttng_ust_abi_exit(void);
+
#endif /* _LTTNG_UST_ABI_H */
+++ /dev/null
-AM_CPPFLAGS = -I$(top_srcdir)/include
-
-noinst_LTLIBRARIES = liblttng-sessiond-comm.la
-
-liblttng_sessiond_comm_la_SOURCES = lttng-sessiond-comm.c \
- lttng-sessiond-comm.h
+++ /dev/null
-/*
- * Copyright (C) 2011 - David Goulet <david.goulet@polymtl.ca>
- *
- * This program is free software; you can redistribute it and/or
- * modify it under the terms of the GNU General Public License
- * as published by the Free Software Foundation; only version 2
- * of the License.
- *
- * This program is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
- * GNU General Public License for more details.
- *
- * You should have received a copy of the GNU General Public License
- * along with this program; if not, write to the Free Software
- * Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.
- */
-
-#define _GNU_SOURCE
-#include <limits.h>
-#include <stdio.h>
-#include <stdlib.h>
-#include <string.h>
-#include <sys/socket.h>
-#include <sys/stat.h>
-#include <sys/types.h>
-#include <sys/un.h>
-#include <unistd.h>
-#include <assert.h>
-
-#include <lttng-sessiond-comm.h>
-
-/*
- * Human readable error message.
- */
-static const char *lttcomm_readable_code[] = {
- [ LTTCOMM_ERR_INDEX(LTTCOMM_OK) ] = "Success",
- [ LTTCOMM_ERR_INDEX(LTTCOMM_ERR) ] = "Unknown error",
- [ LTTCOMM_ERR_INDEX(LTTCOMM_UND) ] = "Undefined command",
- [ LTTCOMM_ERR_INDEX(LTTCOMM_NOT_IMPLEMENTED) ] = "Not implemented",
- [ LTTCOMM_ERR_INDEX(LTTCOMM_UNKNOWN_DOMAIN) ] = "Unknown tracing domain",
- [ LTTCOMM_ERR_INDEX(LTTCOMM_NO_SESSION) ] = "No session found",
- [ LTTCOMM_ERR_INDEX(LTTCOMM_LIST_FAIL) ] = "Unable to list traceable apps",
- [ LTTCOMM_ERR_INDEX(LTTCOMM_NO_APPS) ] = "No traceable apps found",
- [ LTTCOMM_ERR_INDEX(LTTCOMM_SESS_NOT_FOUND) ] = "Session name not found",
- [ LTTCOMM_ERR_INDEX(LTTCOMM_NO_TRACE) ] = "No trace found",
- [ LTTCOMM_ERR_INDEX(LTTCOMM_FATAL) ] = "Fatal error of the session daemon",
- [ LTTCOMM_ERR_INDEX(LTTCOMM_CREATE_FAIL) ] = "Create trace failed",
- [ LTTCOMM_ERR_INDEX(LTTCOMM_START_FAIL) ] = "Start trace failed",
- [ LTTCOMM_ERR_INDEX(LTTCOMM_STOP_FAIL) ] = "Stop trace failed",
- [ LTTCOMM_ERR_INDEX(LTTCOMM_NO_TRACEABLE) ] = "App is not traceable",
- [ LTTCOMM_ERR_INDEX(LTTCOMM_SELECT_SESS) ] = "A session MUST be selected",
- [ LTTCOMM_ERR_INDEX(LTTCOMM_EXIST_SESS) ] = "Session name already exist",
- [ LTTCOMM_ERR_INDEX(LTTCOMM_KERN_NA) ] = "Kernel tracer not available",
- [ LTTCOMM_ERR_INDEX(LTTCOMM_KERN_EVENT_EXIST) ] = "Kernel event already exists",
- [ LTTCOMM_ERR_INDEX(LTTCOMM_KERN_SESS_FAIL) ] = "Kernel create session failed",
- [ LTTCOMM_ERR_INDEX(LTTCOMM_KERN_CHAN_FAIL) ] = "Kernel create channel failed",
- [ LTTCOMM_ERR_INDEX(LTTCOMM_KERN_CHAN_NOT_FOUND) ] = "Kernel channel not found",
- [ LTTCOMM_ERR_INDEX(LTTCOMM_KERN_CHAN_DISABLE_FAIL) ] = "Disable kernel channel failed",
- [ LTTCOMM_ERR_INDEX(LTTCOMM_KERN_CHAN_ENABLE_FAIL) ] = "Enable kernel channel failed",
- [ LTTCOMM_ERR_INDEX(LTTCOMM_KERN_CONTEXT_FAIL) ] = "Add kernel context failed",
- [ LTTCOMM_ERR_INDEX(LTTCOMM_KERN_ENABLE_FAIL) ] = "Enable kernel event failed",
- [ LTTCOMM_ERR_INDEX(LTTCOMM_KERN_DISABLE_FAIL) ] = "Disable kernel event failed",
- [ LTTCOMM_ERR_INDEX(LTTCOMM_KERN_META_FAIL) ] = "Opening metadata failed",
- [ LTTCOMM_ERR_INDEX(LTTCOMM_KERN_START_FAIL) ] = "Starting kernel trace failed",
- [ LTTCOMM_ERR_INDEX(LTTCOMM_KERN_STOP_FAIL) ] = "Stoping kernel trace failed",
- [ LTTCOMM_ERR_INDEX(LTTCOMM_KERN_CONSUMER_FAIL) ] = "Kernel consumer start failed",
- [ LTTCOMM_ERR_INDEX(LTTCOMM_KERN_STREAM_FAIL) ] = "Kernel create stream failed",
- [ LTTCOMM_ERR_INDEX(LTTCOMM_KERN_DIR_FAIL) ] = "Kernel trace directory creation failed",
- [ LTTCOMM_ERR_INDEX(LTTCOMM_KERN_DIR_EXIST) ] = "Kernel trace directory already exist",
- [ LTTCOMM_ERR_INDEX(LTTCOMM_KERN_NO_SESSION) ] = "No kernel session found",
- [ LTTCOMM_ERR_INDEX(LTTCOMM_KERN_LIST_FAIL) ] = "Listing kernel events failed",
- [ LTTCOMM_ERR_INDEX(KCONSUMERD_COMMAND_SOCK_READY) ] = "Kconsumerd command socket ready",
- [ LTTCOMM_ERR_INDEX(KCONSUMERD_SUCCESS_RECV_FD) ] = "Kconsumerd success on receiving fds",
- [ LTTCOMM_ERR_INDEX(KCONSUMERD_ERROR_RECV_FD) ] = "Kconsumerd error on receiving fds",
- [ LTTCOMM_ERR_INDEX(KCONSUMERD_POLL_ERROR) ] = "Kconsumerd error in polling thread",
- [ LTTCOMM_ERR_INDEX(KCONSUMERD_POLL_NVAL) ] = "Kconsumerd polling on closed fd",
- [ LTTCOMM_ERR_INDEX(KCONSUMERD_POLL_HUP) ] = "Kconsumerd all fd hung up",
- [ LTTCOMM_ERR_INDEX(KCONSUMERD_EXIT_SUCCESS) ] = "Kconsumerd exiting normally",
- [ LTTCOMM_ERR_INDEX(KCONSUMERD_EXIT_FAILURE) ] = "Kconsumerd exiting on error",
- [ LTTCOMM_ERR_INDEX(KCONSUMERD_OUTFD_ERROR) ] = "Kconsumerd error opening the tracefile",
- [ LTTCOMM_ERR_INDEX(KCONSUMERD_SPLICE_EBADF) ] = "Kconsumerd splice EBADF",
- [ LTTCOMM_ERR_INDEX(KCONSUMERD_SPLICE_EINVAL) ] = "Kconsumerd splice EINVAL",
- [ LTTCOMM_ERR_INDEX(KCONSUMERD_SPLICE_ENOMEM) ] = "Kconsumerd splice ENOMEM",
- [ LTTCOMM_ERR_INDEX(KCONSUMERD_SPLICE_ESPIPE) ] = "Kconsumerd splice ESPIPE",
- [ LTTCOMM_ERR_INDEX(LTTCOMM_NO_EVENT) ] = "Event not found",
-};
-
-/*
- * lttcom_get_readable_code
- *
- * Return ptr to string representing a human readable
- * error code from the lttcomm_return_code enum.
- *
- * These code MUST be negative in other to treat that
- * as an error value.
- */
-const char *lttcomm_get_readable_code(enum lttcomm_return_code code)
-{
- int tmp_code = -code;
-
- if (tmp_code >= LTTCOMM_OK && tmp_code < LTTCOMM_NR) {
- return lttcomm_readable_code[LTTCOMM_ERR_INDEX(tmp_code)];
- }
-
- return "Unknown error code";
-}
-
-/*
- * lttcomm_connect_unix_sock
- *
- * Connect to unix socket using the path name.
- */
-int lttcomm_connect_unix_sock(const char *pathname)
-{
- struct sockaddr_un sun;
- int fd;
- int ret;
-
- /*
- * libust threads require the close-on-exec flag for all
- * resources so it does not leak file descriptors upon exec.
- */
- fd = socket(PF_UNIX, SOCK_STREAM | SOCK_CLOEXEC, 0);
- if (fd < 0) {
- perror("socket");
- ret = fd;
- goto error;
- }
-
- memset(&sun, 0, sizeof(sun));
- sun.sun_family = AF_UNIX;
- strncpy(sun.sun_path, pathname, sizeof(sun.sun_path));
- sun.sun_path[sizeof(sun.sun_path) - 1] = '\0';
-
- ret = connect(fd, (struct sockaddr *) &sun, sizeof(sun));
- if (ret < 0) {
- /*
- * Don't print message on connect error, because connect
- * is used in normal execution to detect if sessiond is
- * alive.
- */
- goto error_connect;
- }
-
- return fd;
-
-error_connect:
- close(fd);
-error:
- return ret;
-}
-
-/*
- * lttcomm_accept_unix_sock
- *
- * Do an accept(2) on the sock and return the
- * new file descriptor. The socket MUST be bind(2) before.
- */
-int lttcomm_accept_unix_sock(int sock)
-{
- int new_fd;
- struct sockaddr_un sun;
- socklen_t len = 0;
-
- /* Blocking call */
- new_fd = accept(sock, (struct sockaddr *) &sun, &len);
- if (new_fd < 0) {
- perror("accept");
- goto error;
- }
-
- return new_fd;
-
-error:
- return -1;
-}
-
-/*
- * lttcomm_create_unix_sock
- *
- * Creates a AF_UNIX local socket using pathname
- * bind the socket upon creation and return the fd.
- */
-int lttcomm_create_unix_sock(const char *pathname)
-{
- struct sockaddr_un sun;
- int fd;
- int ret = -1;
-
- /* Create server socket */
- if ((fd = socket(PF_UNIX, SOCK_STREAM, 0)) < 0) {
- perror("socket");
- goto error;
- }
-
- memset(&sun, 0, sizeof(sun));
- sun.sun_family = AF_UNIX;
- strncpy(sun.sun_path, pathname, sizeof(sun.sun_path));
- sun.sun_path[sizeof(sun.sun_path) - 1] = '\0';
-
- /* Unlink the old file if present */
- (void) unlink(pathname);
- ret = bind(fd, (struct sockaddr *) &sun, sizeof(sun));
- if (ret < 0) {
- perror("bind");
- goto error;
- }
-
- return fd;
-
-error:
- return ret;
-}
-
-/*
- * lttcomm_listen_unix_sock
- *
- * Make the socket listen using MAX_LISTEN.
- */
-int lttcomm_listen_unix_sock(int sock)
-{
- int ret;
-
- ret = listen(sock, MAX_LISTEN);
- if (ret < 0) {
- perror("listen");
- }
-
- return ret;
-}
-
-/*
- * lttcomm_recv_unix_sock
- *
- * Receive data of size len in put that data into
- * the buf param. Using recvmsg API.
- * Return the size of received data.
- */
-ssize_t lttcomm_recv_unix_sock(int sock, void *buf, size_t len)
-{
- struct msghdr msg = { 0 };
- struct iovec iov[1];
- ssize_t ret = -1;
-
- iov[0].iov_base = buf;
- iov[0].iov_len = len;
- msg.msg_iov = iov;
- msg.msg_iovlen = 1;
-
- ret = recvmsg(sock, &msg, 0);
- if (ret < 0) {
- perror("recvmsg");
- }
-
- return ret;
-}
-
-/*
- * lttcomm_send_unix_sock
- *
- * Send buf data of size len. Using sendmsg API.
- * Return the size of sent data.
- */
-ssize_t lttcomm_send_unix_sock(int sock, void *buf, size_t len)
-{
- struct msghdr msg = { 0 };
- struct iovec iov[1];
- ssize_t ret = -1;
-
- iov[0].iov_base = buf;
- iov[0].iov_len = len;
- msg.msg_iov = iov;
- msg.msg_iovlen = 1;
-
- ret = sendmsg(sock, &msg, 0);
- if (ret < 0) {
- perror("sendmsg");
- }
-
- return ret;
-}
-
-/*
- * lttcomm_close_unix_sock
- *
- * Shutdown cleanly a unix socket.
- */
-int lttcomm_close_unix_sock(int sock)
-{
- int ret;
-
- /* Shutdown receptions and transmissions */
- ret = shutdown(sock, SHUT_RDWR);
- if (ret < 0) {
- perror("shutdown");
- }
-
- return ret;
-}
-
-/*
- * lttcomm_send_fds_unix_sock
- *
- * Send multiple fds on a unix socket.
- */
-ssize_t lttcomm_send_fds_unix_sock(int sock, void *buf, int *fds, size_t nb_fd, size_t len)
-{
- struct msghdr msg = { 0 };
- struct cmsghdr *cmptr;
- struct iovec iov[1];
- ssize_t ret = -1;
- unsigned int sizeof_fds = nb_fd * sizeof(int);
- char tmp[CMSG_SPACE(sizeof_fds)];
-
- /*
- * Note: the consumerd receiver only supports receiving one FD per
- * message.
- */
- assert(nb_fd == 1);
-
- msg.msg_control = (caddr_t)tmp;
- msg.msg_controllen = CMSG_LEN(sizeof_fds);
-
- cmptr = CMSG_FIRSTHDR(&msg);
- cmptr->cmsg_level = SOL_SOCKET;
- cmptr->cmsg_type = SCM_RIGHTS;
- cmptr->cmsg_len = CMSG_LEN(sizeof_fds);
- memcpy(CMSG_DATA(cmptr), fds, sizeof_fds);
- /* Sum of the length of all control messages in the buffer: */
- msg.msg_controllen = cmptr->cmsg_len;
-
- iov[0].iov_base = buf;
- iov[0].iov_len = len;
- msg.msg_iov = iov;
- msg.msg_iovlen = 1;
-
- ret = sendmsg(sock, &msg, 0);
- if (ret < 0) {
- perror("sendmsg");
- }
-
- return ret;
-}
--- /dev/null
+AM_CPPFLAGS = -I$(top_srcdir)/include
+
+noinst_LTLIBRARIES = liblttng-ust-comm.la
+
+liblttng_ust_comm_la_SOURCES = lttng-ust-comm.c
--- /dev/null
+/*
+ * Copyright (C) 2011 - David Goulet <david.goulet@polymtl.ca>
+ *
+ * This program is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU General Public License
+ * as published by the Free Software Foundation; only version 2
+ * of the License.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program; if not, write to the Free Software
+ * Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.
+ */
+
+#define _GNU_SOURCE
+#include <limits.h>
+#include <stdio.h>
+#include <stdlib.h>
+#include <string.h>
+#include <sys/socket.h>
+#include <sys/stat.h>
+#include <sys/types.h>
+#include <sys/un.h>
+#include <unistd.h>
+#include <assert.h>
+
+#include <lttng-ust-comm.h>
+
+/*
+ * Human readable error message.
+ */
+static const char *lttcomm_readable_code[] = {
+ [ LTTCOMM_ERR_INDEX(LTTCOMM_OK) ] = "Success",
+ [ LTTCOMM_ERR_INDEX(LTTCOMM_ERR) ] = "Unknown error",
+ [ LTTCOMM_ERR_INDEX(LTTCOMM_UND) ] = "Undefined command",
+ [ LTTCOMM_ERR_INDEX(LTTCOMM_NOT_IMPLEMENTED) ] = "Not implemented",
+ [ LTTCOMM_ERR_INDEX(LTTCOMM_UNKNOWN_DOMAIN) ] = "Unknown tracing domain",
+ [ LTTCOMM_ERR_INDEX(LTTCOMM_NO_SESSION) ] = "No session found",
+ [ LTTCOMM_ERR_INDEX(LTTCOMM_LIST_FAIL) ] = "Unable to list traceable apps",
+ [ LTTCOMM_ERR_INDEX(LTTCOMM_NO_APPS) ] = "No traceable apps found",
+ [ LTTCOMM_ERR_INDEX(LTTCOMM_SESS_NOT_FOUND) ] = "Session name not found",
+ [ LTTCOMM_ERR_INDEX(LTTCOMM_NO_TRACE) ] = "No trace found",
+ [ LTTCOMM_ERR_INDEX(LTTCOMM_FATAL) ] = "Fatal error of the session daemon",
+ [ LTTCOMM_ERR_INDEX(LTTCOMM_CREATE_FAIL) ] = "Create trace failed",
+ [ LTTCOMM_ERR_INDEX(LTTCOMM_START_FAIL) ] = "Start trace failed",
+ [ LTTCOMM_ERR_INDEX(LTTCOMM_STOP_FAIL) ] = "Stop trace failed",
+ [ LTTCOMM_ERR_INDEX(LTTCOMM_NO_TRACEABLE) ] = "App is not traceable",
+ [ LTTCOMM_ERR_INDEX(LTTCOMM_SELECT_SESS) ] = "A session MUST be selected",
+ [ LTTCOMM_ERR_INDEX(LTTCOMM_EXIST_SESS) ] = "Session name already exist",
+ [ LTTCOMM_ERR_INDEX(LTTCOMM_KERN_NA) ] = "Kernel tracer not available",
+ [ LTTCOMM_ERR_INDEX(LTTCOMM_KERN_EVENT_EXIST) ] = "Kernel event already exists",
+ [ LTTCOMM_ERR_INDEX(LTTCOMM_KERN_SESS_FAIL) ] = "Kernel create session failed",
+ [ LTTCOMM_ERR_INDEX(LTTCOMM_KERN_CHAN_FAIL) ] = "Kernel create channel failed",
+ [ LTTCOMM_ERR_INDEX(LTTCOMM_KERN_CHAN_NOT_FOUND) ] = "Kernel channel not found",
+ [ LTTCOMM_ERR_INDEX(LTTCOMM_KERN_CHAN_DISABLE_FAIL) ] = "Disable kernel channel failed",
+ [ LTTCOMM_ERR_INDEX(LTTCOMM_KERN_CHAN_ENABLE_FAIL) ] = "Enable kernel channel failed",
+ [ LTTCOMM_ERR_INDEX(LTTCOMM_KERN_CONTEXT_FAIL) ] = "Add kernel context failed",
+ [ LTTCOMM_ERR_INDEX(LTTCOMM_KERN_ENABLE_FAIL) ] = "Enable kernel event failed",
+ [ LTTCOMM_ERR_INDEX(LTTCOMM_KERN_DISABLE_FAIL) ] = "Disable kernel event failed",
+ [ LTTCOMM_ERR_INDEX(LTTCOMM_KERN_META_FAIL) ] = "Opening metadata failed",
+ [ LTTCOMM_ERR_INDEX(LTTCOMM_KERN_START_FAIL) ] = "Starting kernel trace failed",
+ [ LTTCOMM_ERR_INDEX(LTTCOMM_KERN_STOP_FAIL) ] = "Stoping kernel trace failed",
+ [ LTTCOMM_ERR_INDEX(LTTCOMM_KERN_CONSUMER_FAIL) ] = "Kernel consumer start failed",
+ [ LTTCOMM_ERR_INDEX(LTTCOMM_KERN_STREAM_FAIL) ] = "Kernel create stream failed",
+ [ LTTCOMM_ERR_INDEX(LTTCOMM_KERN_DIR_FAIL) ] = "Kernel trace directory creation failed",
+ [ LTTCOMM_ERR_INDEX(LTTCOMM_KERN_DIR_EXIST) ] = "Kernel trace directory already exist",
+ [ LTTCOMM_ERR_INDEX(LTTCOMM_KERN_NO_SESSION) ] = "No kernel session found",
+ [ LTTCOMM_ERR_INDEX(LTTCOMM_KERN_LIST_FAIL) ] = "Listing kernel events failed",
+ [ LTTCOMM_ERR_INDEX(KCONSUMERD_COMMAND_SOCK_READY) ] = "Kconsumerd command socket ready",
+ [ LTTCOMM_ERR_INDEX(KCONSUMERD_SUCCESS_RECV_FD) ] = "Kconsumerd success on receiving fds",
+ [ LTTCOMM_ERR_INDEX(KCONSUMERD_ERROR_RECV_FD) ] = "Kconsumerd error on receiving fds",
+ [ LTTCOMM_ERR_INDEX(KCONSUMERD_POLL_ERROR) ] = "Kconsumerd error in polling thread",
+ [ LTTCOMM_ERR_INDEX(KCONSUMERD_POLL_NVAL) ] = "Kconsumerd polling on closed fd",
+ [ LTTCOMM_ERR_INDEX(KCONSUMERD_POLL_HUP) ] = "Kconsumerd all fd hung up",
+ [ LTTCOMM_ERR_INDEX(KCONSUMERD_EXIT_SUCCESS) ] = "Kconsumerd exiting normally",
+ [ LTTCOMM_ERR_INDEX(KCONSUMERD_EXIT_FAILURE) ] = "Kconsumerd exiting on error",
+ [ LTTCOMM_ERR_INDEX(KCONSUMERD_OUTFD_ERROR) ] = "Kconsumerd error opening the tracefile",
+ [ LTTCOMM_ERR_INDEX(KCONSUMERD_SPLICE_EBADF) ] = "Kconsumerd splice EBADF",
+ [ LTTCOMM_ERR_INDEX(KCONSUMERD_SPLICE_EINVAL) ] = "Kconsumerd splice EINVAL",
+ [ LTTCOMM_ERR_INDEX(KCONSUMERD_SPLICE_ENOMEM) ] = "Kconsumerd splice ENOMEM",
+ [ LTTCOMM_ERR_INDEX(KCONSUMERD_SPLICE_ESPIPE) ] = "Kconsumerd splice ESPIPE",
+ [ LTTCOMM_ERR_INDEX(LTTCOMM_NO_EVENT) ] = "Event not found",
+};
+
+/*
+ * lttcom_get_readable_code
+ *
+ * Return ptr to string representing a human readable
+ * error code from the lttcomm_return_code enum.
+ *
+ * These code MUST be negative in other to treat that
+ * as an error value.
+ */
+const char *lttcomm_get_readable_code(enum lttcomm_return_code code)
+{
+ int tmp_code = -code;
+
+ if (tmp_code >= LTTCOMM_OK && tmp_code < LTTCOMM_NR) {
+ return lttcomm_readable_code[LTTCOMM_ERR_INDEX(tmp_code)];
+ }
+
+ return "Unknown error code";
+}
+
+/*
+ * lttcomm_connect_unix_sock
+ *
+ * Connect to unix socket using the path name.
+ */
+int lttcomm_connect_unix_sock(const char *pathname)
+{
+ struct sockaddr_un sun;
+ int fd;
+ int ret;
+
+ /*
+ * libust threads require the close-on-exec flag for all
+ * resources so it does not leak file descriptors upon exec.
+ */
+ fd = socket(PF_UNIX, SOCK_STREAM | SOCK_CLOEXEC, 0);
+ if (fd < 0) {
+ perror("socket");
+ ret = fd;
+ goto error;
+ }
+
+ memset(&sun, 0, sizeof(sun));
+ sun.sun_family = AF_UNIX;
+ strncpy(sun.sun_path, pathname, sizeof(sun.sun_path));
+ sun.sun_path[sizeof(sun.sun_path) - 1] = '\0';
+
+ ret = connect(fd, (struct sockaddr *) &sun, sizeof(sun));
+ if (ret < 0) {
+ /*
+ * Don't print message on connect error, because connect
+ * is used in normal execution to detect if sessiond is
+ * alive.
+ */
+ goto error_connect;
+ }
+
+ return fd;
+
+error_connect:
+ close(fd);
+error:
+ return ret;
+}
+
+/*
+ * lttcomm_accept_unix_sock
+ *
+ * Do an accept(2) on the sock and return the
+ * new file descriptor. The socket MUST be bind(2) before.
+ */
+int lttcomm_accept_unix_sock(int sock)
+{
+ int new_fd;
+ struct sockaddr_un sun;
+ socklen_t len = 0;
+
+ /* Blocking call */
+ new_fd = accept(sock, (struct sockaddr *) &sun, &len);
+ if (new_fd < 0) {
+ perror("accept");
+ goto error;
+ }
+
+ return new_fd;
+
+error:
+ return -1;
+}
+
+/*
+ * lttcomm_create_unix_sock
+ *
+ * Creates a AF_UNIX local socket using pathname
+ * bind the socket upon creation and return the fd.
+ */
+int lttcomm_create_unix_sock(const char *pathname)
+{
+ struct sockaddr_un sun;
+ int fd;
+ int ret = -1;
+
+ /* Create server socket */
+ if ((fd = socket(PF_UNIX, SOCK_STREAM, 0)) < 0) {
+ perror("socket");
+ goto error;
+ }
+
+ memset(&sun, 0, sizeof(sun));
+ sun.sun_family = AF_UNIX;
+ strncpy(sun.sun_path, pathname, sizeof(sun.sun_path));
+ sun.sun_path[sizeof(sun.sun_path) - 1] = '\0';
+
+ /* Unlink the old file if present */
+ (void) unlink(pathname);
+ ret = bind(fd, (struct sockaddr *) &sun, sizeof(sun));
+ if (ret < 0) {
+ perror("bind");
+ goto error;
+ }
+
+ return fd;
+
+error:
+ return ret;
+}
+
+/*
+ * lttcomm_listen_unix_sock
+ *
+ * Make the socket listen using MAX_LISTEN.
+ */
+int lttcomm_listen_unix_sock(int sock)
+{
+ int ret;
+
+ ret = listen(sock, MAX_LISTEN);
+ if (ret < 0) {
+ perror("listen");
+ }
+
+ return ret;
+}
+
+/*
+ * lttcomm_recv_unix_sock
+ *
+ * Receive data of size len in put that data into
+ * the buf param. Using recvmsg API.
+ * Return the size of received data.
+ */
+ssize_t lttcomm_recv_unix_sock(int sock, void *buf, size_t len)
+{
+ struct msghdr msg = { 0 };
+ struct iovec iov[1];
+ ssize_t ret = -1;
+
+ iov[0].iov_base = buf;
+ iov[0].iov_len = len;
+ msg.msg_iov = iov;
+ msg.msg_iovlen = 1;
+
+ ret = recvmsg(sock, &msg, 0);
+ if (ret < 0) {
+ perror("recvmsg");
+ }
+
+ return ret;
+}
+
+/*
+ * lttcomm_send_unix_sock
+ *
+ * Send buf data of size len. Using sendmsg API.
+ * Return the size of sent data.
+ */
+ssize_t lttcomm_send_unix_sock(int sock, void *buf, size_t len)
+{
+ struct msghdr msg = { 0 };
+ struct iovec iov[1];
+ ssize_t ret = -1;
+
+ iov[0].iov_base = buf;
+ iov[0].iov_len = len;
+ msg.msg_iov = iov;
+ msg.msg_iovlen = 1;
+
+ ret = sendmsg(sock, &msg, 0);
+ if (ret < 0) {
+ perror("sendmsg");
+ }
+
+ return ret;
+}
+
+/*
+ * lttcomm_close_unix_sock
+ *
+ * Shutdown cleanly a unix socket.
+ */
+int lttcomm_close_unix_sock(int sock)
+{
+ int ret;
+
+ /* Shutdown receptions and transmissions */
+ ret = shutdown(sock, SHUT_RDWR);
+ if (ret < 0) {
+ perror("shutdown");
+ }
+
+ return ret;
+}
+
+/*
+ * lttcomm_send_fds_unix_sock
+ *
+ * Send multiple fds on a unix socket.
+ */
+ssize_t lttcomm_send_fds_unix_sock(int sock, void *buf, int *fds, size_t nb_fd, size_t len)
+{
+ struct msghdr msg = { 0 };
+ struct cmsghdr *cmptr;
+ struct iovec iov[1];
+ ssize_t ret = -1;
+ unsigned int sizeof_fds = nb_fd * sizeof(int);
+ char tmp[CMSG_SPACE(sizeof_fds)];
+
+ /*
+ * Note: the consumerd receiver only supports receiving one FD per
+ * message.
+ */
+ assert(nb_fd == 1);
+
+ msg.msg_control = (caddr_t)tmp;
+ msg.msg_controllen = CMSG_LEN(sizeof_fds);
+
+ cmptr = CMSG_FIRSTHDR(&msg);
+ cmptr->cmsg_level = SOL_SOCKET;
+ cmptr->cmsg_type = SCM_RIGHTS;
+ cmptr->cmsg_len = CMSG_LEN(sizeof_fds);
+ memcpy(CMSG_DATA(cmptr), fds, sizeof_fds);
+ /* Sum of the length of all control messages in the buffer: */
+ msg.msg_controllen = cmptr->cmsg_len;
+
+ iov[0].iov_base = buf;
+ iov[0].iov_len = len;
+ msg.msg_iov = iov;
+ msg.msg_iovlen = 1;
+
+ ret = sendmsg(sock, &msg, 0);
+ if (ret < 0) {
+ perror("sendmsg");
+ }
+
+ return ret;
+}
-luuid \
$(top_builddir)/snprintf/libustsnprintf.la \
$(top_builddir)/libringbuffer/libringbuffer.la \
- $(top_builddir)/liblttng-sessiond-comm/liblttng-sessiond-comm.la
+ $(top_builddir)/liblttng-ust-comm/liblttng-ust-comm.la
libust_la_CFLAGS = -DUST_COMPONENT="libust" -fno-strict-aliasing
.cmd = lttng_event_cmd,
};
-void __attribute__((constructor)) lttng_ust_abi_init(void)
-{
- init_usterr();
- /* TODO: initialize socket */
-}
-
-static
-void __attribute__((destructor)) lttng_ust_abi_exit(void)
+void lttng_ust_abi_exit(void)
{
/* TODO: teardown socket */
objd_table_destroy();
#include <sys/socket.h>
#include <unistd.h>
#include <errno.h>
-#include <lttng-sessiond-comm.h>
+#include <ust/lttng-ust-abi.h>
+#include <lttng-ust-comm.h>
#include <ust/usterr-signal-safe.h>
#include <pthread.h>
int ret;
switch (lum->cmd_type) {
- case LTTNG_UST_CREATE_SESSION:
+ case UST_CREATE_SESSION:
{
struct lttcomm_ust_reply lur;
DBG("Handling create session message");
memset(&lur, 0, sizeof(lur));
- lur.cmd_type = LTTNG_UST_CREATE_SESSION;
+ lur.cmd_type = UST_CREATE_SESSION;
/* ... */
ret = 0;
if (ret) {
ERR("Error cancelling local ust listener thread");
}
+ lttng_ust_abi_exit();
}
projects / lttng-ust.git / commitdiff
