| 1 | /* |
| 2 | * Copyright (C) 2009 Pierre-Marc Fournier |
| 3 | * Copyright (C) 2011 Mathieu Desnoyers <mathieu.desnoyers@efficios.com> |
| 4 | * |
| 5 | * This library is free software; you can redistribute it and/or |
| 6 | * modify it under the terms of the GNU Lesser General Public |
| 7 | * License as published by the Free Software Foundation; either |
| 8 | * version 2.1 of the License, or (at your option) any later version. |
| 9 | * |
| 10 | * This library is distributed in the hope that it will be useful, |
| 11 | * but WITHOUT ANY WARRANTY; without even the implied warranty of |
| 12 | * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU |
| 13 | * Lesser General Public License for more details. |
| 14 | * |
| 15 | * You should have received a copy of the GNU Lesser General Public |
| 16 | * License along with this library; if not, write to the Free Software |
| 17 | * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA |
| 18 | */ |
| 19 | |
| 20 | #include <stdio.h> |
| 21 | #include <unistd.h> |
| 22 | #include <sys/mman.h> |
| 23 | #include <stdarg.h> |
| 24 | #include <sys/types.h> |
| 25 | #include <sys/stat.h> |
| 26 | #include <fcntl.h> |
| 27 | #include <signal.h> |
| 28 | |
| 29 | #include <ust/marker.h> |
| 30 | #include <ust/ustctl.h> |
| 31 | #include "usterr.h" |
| 32 | #include "tp.h" |
| 33 | |
| 34 | void inthandler(int sig) |
| 35 | { |
| 36 | printf("in handler\n"); |
| 37 | exit(0); |
| 38 | } |
| 39 | |
| 40 | int init_int_handler(void) |
| 41 | { |
| 42 | int result; |
| 43 | struct sigaction act; |
| 44 | |
| 45 | result = sigemptyset(&act.sa_mask); |
| 46 | if (result == -1) { |
| 47 | PERROR("sigemptyset"); |
| 48 | return -1; |
| 49 | } |
| 50 | |
| 51 | act.sa_handler = inthandler; |
| 52 | act.sa_flags = SA_RESTART; |
| 53 | |
| 54 | /* Only defer ourselves. Also, try to restart interrupted |
| 55 | * syscalls to disturb the traced program as little as possible. |
| 56 | */ |
| 57 | result = sigaction(SIGINT, &act, NULL); |
| 58 | if (result == -1) { |
| 59 | PERROR("sigaction"); |
| 60 | return -1; |
| 61 | } |
| 62 | |
| 63 | return 0; |
| 64 | } |
| 65 | |
| 66 | int main() |
| 67 | { |
| 68 | int i; |
| 69 | |
| 70 | init_int_handler(); |
| 71 | |
| 72 | printf("Hello, World!\n"); |
| 73 | |
| 74 | sleep(1); |
| 75 | for (i = 0; i < 50; i++) { |
| 76 | ust_marker(bar, "str %s", "FOOBAZ"); |
| 77 | ust_marker(bar2, "number1 %d number2 %d", 53, 9800); |
| 78 | tracepoint(hello_tptest, i); |
| 79 | usleep(100000); |
| 80 | } |
| 81 | |
| 82 | if (scanf("%*s") == EOF) |
| 83 | PERROR("scanf failed"); |
| 84 | |
| 85 | ustctl_stop_trace(getpid(), "auto"); |
| 86 | ustctl_destroy_trace(getpid(), "auto"); |
| 87 | |
| 88 | DBG("TRACE STOPPED"); |
| 89 | if (scanf("%*s") == EOF) |
| 90 | PERROR("scanf failed"); |
| 91 | |
| 92 | return 0; |
| 93 | } |