[lttng-ust.git] / include / share.h

#ifndef UST_SHARE_H
#define UST_SHARE_H

#include <unistd.h>
#include <errno.h>

/* This write is patient because it restarts if it was incomplete.
 */

static inline ssize_t patient_write(int fd, const void *buf, size_t count)
{
	const char *bufc = (const char *) buf;
	int result;

	for(;;) {
		result = write(fd, bufc, count);
		if(result == -1 && errno == EINTR) {
			continue;
		}
		if(result <= 0) {
			return result;
		}
		count -= result;
		bufc += result;

		if(count == 0) {
			break;
		}
	}

	return bufc-(const char *)buf;
}

#endif /* UST_SHARE_H */
Commit	Line	Data
8bf5ab2d PMF	1	#ifndef UST_SHARE_H
	2	#define UST_SHARE_H
	3
	4	#include <unistd.h>
	5	#include <errno.h>
	6
	7	/* This write is patient because it restarts if it was incomplete.
	8	*/
	9
	10	static inline ssize_t patient_write(int fd, const void *buf, size_t count)
	11	{
	12	const char bufc = (const char ) buf;
	13	int result;
	14
	15	for(;;) {
	16	result = write(fd, bufc, count);
	17	if(result == -1 && errno == EINTR) {
	18	continue;
	19	}
	20	if(result <= 0) {
	21	return result;
	22	}
	23	count -= result;
	24	bufc += result;
	25
	26	if(count == 0) {
	27	break;
	28	}
	29	}
	30
	31	return bufc-(const char *)buf;
	32	}
	33
	34	#endif /* UST_SHARE_H */