mirrors/pulseaudio
1
0
Fork 0
mirror of https://gitlab.freedesktop.org/pulseaudio/pulseaudio.git synced 2025-11-06 13:29:56 -05:00
Code Issues Projects Releases Packages Wiki Activity Actions

merge 'lennart' branch back into trunk.

Browse source 
git-svn-id: file:///home/lennart/svn/public/pulseaudio/trunk@1971 fefdeb5f-60dc-0310-8127-8f9354f1896f
This commit is contained in:
Lennart Poettering 2007-10-28 19:13:50 +00:00
parent 6687dd0131
commit a67c21f093
294 changed files with 79057 additions and 11614 deletions
Download patch file Download diff file Expand all files Collapse all files

52
src/daemon/cpulimit.c
View file

@ -30,6 +30,7 @@
#include <pulsecore/core-util.h>
#include <pulsecore/core-error.h>
#include <pulsecore/log.h>
#include <pulsecore/macro.h>
#include "cpulimit.h"
@ -38,7 +39,6 @@
#include <errno.h>
#include <stdio.h>
#include <string.h>
#include <assert.h>
#include <sys/time.h>
#include <unistd.h>
#include <signal.h>
@ -92,23 +92,18 @@ static enum {
/* Reset the SIGXCPU timer to the next t seconds */
static void reset_cpu_time(int t) {
int r;
long n;
struct rlimit rl;
struct rusage ru;
/* Get the current CPU time of the current process */
r = getrusage(RUSAGE_SELF, &ru);
assert(r >= 0);
pa_assert_se(getrusage(RUSAGE_SELF, &ru) >= 0);
n = ru.ru_utime.tv_sec + ru.ru_stime.tv_sec + t;
r = getrlimit(RLIMIT_CPU, &rl);
assert(r >= 0);
pa_assert_se(getrlimit(RLIMIT_CPU, &rl) >= 0);
rl.rlim_cur = n;
r = setrlimit(RLIMIT_CPU, &rl);
assert(r >= 0);
pa_assert_se(setrlimit(RLIMIT_CPU, &rl) >= 0);
}
/* A simple, thread-safe puts() work-alike */
@ -118,7 +113,7 @@ static void write_err(const char *p) {
/* The signal handler, called on every SIGXCPU */
static void signal_handler(int sig) {
assert(sig == SIGXCPU);
pa_assert(sig == SIGXCPU);
if (phase == PHASE_IDLE) {
time_t now;
@ -130,7 +125,7 @@ static void signal_handler(int sig) {
time(&now);
#ifdef PRINT_CPU_LOAD
snprintf(t, sizeof(t), "Using %0.1f%% CPU\n", (double)CPUTIME_INTERVAL_SOFT/(now-last_time)*100);
pa_snprintf(t, sizeof(t), "Using %0.1f%% CPU\n", (double)CPUTIME_INTERVAL_SOFT/(now-last_time)*100);
write_err(t);
#endif
@ -160,7 +155,12 @@ static void signal_handler(int sig) {
/* Callback for IO events on the FIFO */
static void callback(pa_mainloop_api*m, pa_io_event*e, int fd, pa_io_event_flags_t f, void *userdata) {
char c;
assert(m && e && f == PA_IO_EVENT_INPUT && e == io_event && fd == the_pipe[0]);
pa_assert(m);
pa_assert(e);
pa_assert(f == PA_IO_EVENT_INPUT);
pa_assert(e == io_event);
pa_assert(fd == the_pipe[0]);
pa_read(the_pipe[0], &c, sizeof(c), NULL);
m->quit(m, 1); /* Quit the main loop */
}
@ -168,7 +168,13 @@ static void callback(pa_mainloop_api*m, pa_io_event*e, int fd, pa_io_event_flags
/* Initializes CPU load limiter */
int pa_cpu_limit_init(pa_mainloop_api *m) {
struct sigaction sa;
assert(m && !api && !io_event && the_pipe[0] == -1 && the_pipe[1] == -1 && !installed);
pa_assert(m);
pa_assert(!api);
pa_assert(!io_event);
pa_assert(the_pipe[0] == -1);
pa_assert(the_pipe[1] == -1);
pa_assert(!installed);
time(&last_time);
@ -178,10 +184,10 @@ int pa_cpu_limit_init(pa_mainloop_api *m) {
return -1;
}
pa_make_nonblock_fd(the_pipe[0]);
pa_make_nonblock_fd(the_pipe[1]);
pa_fd_set_cloexec(the_pipe[0], 1);
pa_fd_set_cloexec(the_pipe[1], 1);
pa_make_fd_nonblock(the_pipe[0]);
pa_make_fd_nonblock(the_pipe[1]);
pa_make_fd_cloexec(the_pipe[0]);
pa_make_fd_cloexec(the_pipe[1]);
api = m;
io_event = api->io_new(m, the_pipe[0], PA_IO_EVENT_INPUT, callback, NULL);
@ -208,24 +214,18 @@ int pa_cpu_limit_init(pa_mainloop_api *m) {
/* Shutdown CPU load limiter */
void pa_cpu_limit_done(void) {
int r;
if (io_event) {
assert(api);
pa_assert(api);
api->io_free(io_event);
io_event = NULL;
api = NULL;
}
if (the_pipe[0] >= 0)
close(the_pipe[0]);
if (the_pipe[1] >= 0)
close(the_pipe[1]);
the_pipe[0] = the_pipe[1] = -1;
pa_close_pipe(the_pipe);
if (installed) {
r = sigaction(SIGXCPU, &sigaction_prev, NULL);
assert(r >= 0);
pa_assert_se(sigaction(SIGXCPU, &sigaction_prev, NULL) >= 0);
installed = 0;
}
}