#include "asterisk.h"
#include <unistd.h>
#include <sys/types.h>
#include <sys/time.h>
#include <assert.h>
#include <string.h>
#include <errno.h>
#include "asterisk/utils.h"
#include "asterisk/poll-compat.h"
Go to the source code of this file.
Functions | |
int | ast_poll2 (struct pollfd *pArray, unsigned long n_fds, struct timeval *tv) |
Same as poll(2), except the time is specified in microseconds and the tv argument is modified to indicate the time remaining. | |
Variables | |
unsigned int | ast_FD_SETSIZE = FD_SETSIZE |
int ast_poll2 | ( | struct pollfd * | pArray, |
unsigned long | n_fds, | ||
struct timeval * | tv | ||
) |
Same as poll(2), except the time is specified in microseconds and the tv argument is modified to indicate the time remaining.
Definition at line 264 of file poll.c.
References ast_select(), ast_tv(), ast_tvadd(), ast_tvdiff_ms(), ast_tvnow(), ast_tvsub(), and FD_ZERO.
Referenced by do_monitor().
{ #if !defined(AST_POLL_COMPAT) struct timeval start = ast_tvnow(); #if defined(HAVE_PPOLL) struct timespec ts = { tv ? tv->tv_sec : 0, tv ? tv->tv_usec * 1000 : 0 }; int res = ppoll(pArray, n_fds, tv ? &ts : NULL, NULL); #else int res = poll(pArray, n_fds, tv ? tv->tv_sec * 1000 + tv->tv_usec / 1000 : -1); #endif struct timeval after = ast_tvnow(); if (res > 0 && tv && ast_tvdiff_ms(ast_tvadd(*tv, start), after) > 0) { *tv = ast_tvsub(*tv, ast_tvsub(after, start)); } else if (res > 0 && tv) { *tv = ast_tv(0, 0); } return res; #else ast_fdset read_descs, write_descs, except_descs; int ready_descriptors, max_fd = 0; FD_ZERO(&read_descs); FD_ZERO(&write_descs); FD_ZERO(&except_descs); if (pArray) { max_fd = map_poll_spec(pArray, n_fds, &read_descs, &write_descs, &except_descs); } ready_descriptors = ast_select(max_fd + 1, &read_descs, &write_descs, &except_descs, tv); if (ready_descriptors >= 0) { map_select_results(pArray, n_fds, &read_descs, &write_descs, &except_descs); } return ready_descriptors; #endif }
unsigned int ast_FD_SETSIZE = FD_SETSIZE |