mirror of
https://gitlab.freedesktop.org/pulseaudio/pulseaudio.git
synced 2025-11-04 13:29:59 -05:00
add nice and rtprio resource limit support; make rtprio and nice level to use configurable; some minor updates
git-svn-id: file:///home/lennart/svn/public/pulseaudio/trunk@2010 fefdeb5f-60dc-0310-8127-8f9354f1896f
This commit is contained in:
Lennart Poettering
parent
e706f7bed7
commit
44d7c9ad9b
4 changed files with 209 additions and 85 deletions
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@ -30,6 +30,7 @@
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#include <stdio.h>
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#include <string.h>
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#include <unistd.h>
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#include <sched.h>
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#include <pulse/xmalloc.h>
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@ -53,10 +54,13 @@
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static const pa_daemon_conf default_conf = {
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.cmd = PA_CMD_DAEMON,
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.daemonize = 0,
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.fail = 1,
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.high_priority = 0,
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.disallow_module_loading = 0,
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.daemonize = FALSE,
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.fail = TRUE,
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.high_priority = TRUE,
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.nice_level = -11,
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.realtime_scheduling = FALSE,
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.realtime_priority = 5, /* Half of JACK's default rtprio */
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.disallow_module_loading = FALSE,
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.exit_idle_time = -1,
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.module_idle_time = 20,
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.scache_idle_time = 20,
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@ -68,25 +72,31 @@ static const pa_daemon_conf default_conf = {
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.log_level = PA_LOG_NOTICE,
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.resample_method = PA_RESAMPLER_AUTO,
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.config_file = NULL,
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.use_pid_file = 1,
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.system_instance = 0,
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.no_cpu_limit = 0,
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.disable_shm = 0,
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.use_pid_file = TRUE,
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.system_instance = FALSE,
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.no_cpu_limit = FALSE,
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.disable_shm = FALSE,
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.default_n_fragments = 4,
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.default_fragment_size_msec = 25,
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.default_sample_spec = { .format = PA_SAMPLE_S16NE, .rate = 44100, .channels = 2 }
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#ifdef HAVE_SYS_RESOURCE_H
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, .rlimit_as = { .value = 0, .is_set = 0 },
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.rlimit_core = { .value = 0, .is_set = 0 },
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.rlimit_data = { .value = 0, .is_set = 0 },
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.rlimit_fsize = { .value = 0, .is_set = 0 },
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.rlimit_nofile = { .value = 256, .is_set = 1 },
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.rlimit_stack = { .value = 0, .is_set = 0 }
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, .rlimit_as = { .value = 0, .is_set = FALSE },
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.rlimit_core = { .value = 0, .is_set = FALSE },
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.rlimit_data = { .value = 0, .is_set = FALSE },
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.rlimit_fsize = { .value = 0, .is_set = FALSE },
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.rlimit_nofile = { .value = 256, .is_set = TRUE },
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.rlimit_stack = { .value = 0, .is_set = FALSE }
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#ifdef RLIMIT_NPROC
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, .rlimit_nproc = { .value = 0, .is_set = 0 }
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, .rlimit_nproc = { .value = 0, .is_set = FALSE }
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#endif
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#ifdef RLIMIT_MEMLOCK
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, .rlimit_memlock = { .value = 16384, .is_set = 1 }
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, .rlimit_memlock = { .value = 16384, .is_set = TRUE }
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#endif
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#ifdef RLIMIT_NICE
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, .rlimit_nice = { .value = 31, .is_set = TRUE } /* nice level of -11 */
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#endif
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#ifdef RLIMIT_RTPRIO
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, .rlimit_rtprio = { .value = 9, .is_set = TRUE } /* One below JACK's default for the server */
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#endif
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#endif
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};
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@ -334,6 +344,42 @@ static int parse_fragment_size_msec(const char *filename, unsigned line, const c
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return 0;
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}
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static int parse_nice_level(const char *filename, unsigned line, const char *lvalue, const char *rvalue, void *data, PA_GCC_UNUSED void *userdata) {
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pa_daemon_conf *c = data;
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int32_t level;
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pa_assert(filename);
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pa_assert(lvalue);
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pa_assert(rvalue);
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pa_assert(data);
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if (pa_atoi(rvalue, &level) < 0 || level < -20 || level > 19) {
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pa_log("[%s:%u] Invalid nice level '%s'.", filename, line, rvalue);
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return -1;
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}
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c->nice_level = (int) level;
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return 0;
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}
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static int parse_rtprio(const char *filename, unsigned line, const char *lvalue, const char *rvalue, void *data, PA_GCC_UNUSED void *userdata) {
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pa_daemon_conf *c = data;
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int32_t rtprio;
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pa_assert(filename);
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pa_assert(lvalue);
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pa_assert(rvalue);
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pa_assert(data);
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if (pa_atoi(rvalue, &rtprio) < 0 || rtprio < sched_get_priority_min(SCHED_FIFO) || rtprio > sched_get_priority_max(SCHED_FIFO)) {
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pa_log("[%s:%u] Invalid realtime priority '%s'.", filename, line, rvalue);
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return -1;
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}
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c->realtime_priority = (int) rtprio;
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return 0;
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}
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int pa_daemon_conf_load(pa_daemon_conf *c, const char *filename) {
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int r = -1;
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FILE *f = NULL;
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@ -342,25 +388,28 @@ int pa_daemon_conf_load(pa_daemon_conf *c, const char *filename) {
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{ "daemonize", pa_config_parse_bool, NULL },
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{ "fail", pa_config_parse_bool, NULL },
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{ "high-priority", pa_config_parse_bool, NULL },
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{ "realtime-scheduling", pa_config_parse_bool, NULL },
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{ "disallow-module-loading", pa_config_parse_bool, NULL },
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{ "use-pid-file", pa_config_parse_bool, NULL },
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{ "system-instance", pa_config_parse_bool, NULL },
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{ "no-cpu-limit", pa_config_parse_bool, NULL },
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{ "disable-shm", pa_config_parse_bool, NULL },
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{ "exit-idle-time", pa_config_parse_int, NULL },
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{ "module-idle-time", pa_config_parse_int, NULL },
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{ "scache-idle-time", pa_config_parse_int, NULL },
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{ "realtime-priority", parse_rtprio, NULL },
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{ "dl-search-path", pa_config_parse_string, NULL },
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{ "default-script-file", pa_config_parse_string, NULL },
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{ "log-target", parse_log_target, NULL },
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{ "log-level", parse_log_level, NULL },
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{ "verbose", parse_log_level, NULL },
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{ "resample-method", parse_resample_method, NULL },
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{ "use-pid-file", pa_config_parse_bool, NULL },
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{ "system-instance", pa_config_parse_bool, NULL },
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{ "no-cpu-limit", pa_config_parse_bool, NULL },
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{ "disable-shm", pa_config_parse_bool, NULL },
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{ "default-sample-format", parse_sample_format, NULL },
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{ "default-sample-rate", parse_sample_rate, NULL },
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{ "default-sample-channels", parse_sample_channels, NULL },
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{ "default-fragments", parse_fragments, NULL },
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{ "default-fragment-size-msec", parse_fragment_size_msec, NULL },
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{ "nice-level", parse_nice_level, NULL },
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#ifdef HAVE_SYS_RESOURCE_H
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{ "rlimit-as", parse_rlimit, NULL },
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{ "rlimit-core", parse_rlimit, NULL },
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@ -374,6 +423,12 @@ int pa_daemon_conf_load(pa_daemon_conf *c, const char *filename) {
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#ifdef RLIMIT_MEMLOCK
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{ "rlimit-memlock", parse_rlimit, NULL },
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#endif
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#ifdef RLIMIT_NICE
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{ "rlimit-nice", parse_rlimit, NULL },
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#endif
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#ifdef RLIMIT_RTPRIO
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{ "rlimit-rtprio", parse_rlimit, NULL },
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#endif
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#endif
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{ NULL, NULL, NULL },
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};
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@ -381,40 +436,55 @@ int pa_daemon_conf_load(pa_daemon_conf *c, const char *filename) {
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table[0].data = &c->daemonize;
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table[1].data = &c->fail;
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table[2].data = &c->high_priority;
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table[3].data = &c->disallow_module_loading;
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table[4].data = &c->exit_idle_time;
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table[5].data = &c->module_idle_time;
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table[6].data = &c->scache_idle_time;
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table[7].data = &c->dl_search_path;
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table[8].data = &c->default_script_file;
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table[9].data = c;
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table[10].data = c;
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table[11].data = c;
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table[3].data = &c->realtime_scheduling;
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table[4].data = &c->disallow_module_loading;
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table[5].data = &c->use_pid_file;
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table[6].data = &c->system_instance;
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table[7].data = &c->no_cpu_limit;
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table[8].data = &c->disable_shm;
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table[9].data = &c->exit_idle_time;
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table[10].data = &c->module_idle_time;
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table[11].data = &c->scache_idle_time;
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table[12].data = c;
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table[13].data = &c->use_pid_file;
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table[14].data = &c->system_instance;
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table[15].data = &c->no_cpu_limit;
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table[16].data = &c->disable_shm;
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table[13].data = &c->dl_search_path;
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table[14].data = &c->default_script_file;
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table[15].data = c;
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table[16].data = c;
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table[17].data = c;
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table[18].data = c;
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table[19].data = c;
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table[20].data = c;
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table[21].data = c;
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table[22].data = c;
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table[23].data = c;
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table[24].data = c;
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#ifdef HAVE_SYS_RESOURCE_H
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table[22].data = &c->rlimit_as;
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table[23].data = &c->rlimit_core;
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table[24].data = &c->rlimit_data;
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table[25].data = &c->rlimit_fsize;
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table[26].data = &c->rlimit_nofile;
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table[27].data = &c->rlimit_stack;
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table[25].data = &c->rlimit_as;
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table[26].data = &c->rlimit_core;
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table[27].data = &c->rlimit_data;
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table[28].data = &c->rlimit_fsize;
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table[29].data = &c->rlimit_nofile;
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table[30].data = &c->rlimit_stack;
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#ifdef RLIMIT_NPROC
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table[28].data = &c->rlimit_nproc;
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table[31].data = &c->rlimit_nproc;
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#endif
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#ifdef RLIMIT_MEMLOCK
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#ifndef RLIMIT_NPROC
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#error "Houston, we have a numbering problem!"
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#endif
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table[29].data = &c->rlimit_memlock;
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table[32].data = &c->rlimit_memlock;
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#endif
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#ifdef RLIMIT_NICE
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#ifndef RLIMIT_MEMLOCK
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#error "Houston, we have a numbering problem!"
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#endif
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table[33].data = &c->rlimit_nice;
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#endif
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#ifdef RLIMIT_RTPRIO
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#ifndef RLIMIT_NICE
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#error "Houston, we have a numbering problem!"
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#endif
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table[34].data = &c->rlimit_rtprio;
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#endif
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#endif
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@ -474,10 +544,17 @@ char *pa_daemon_conf_dump(pa_daemon_conf *c) {
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pa_assert(c->log_level <= PA_LOG_LEVEL_MAX);
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pa_strbuf_printf(s, "daemonize = %i\n", !!c->daemonize);
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pa_strbuf_printf(s, "fail = %i\n", !!c->fail);
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pa_strbuf_printf(s, "high-priority = %i\n", !!c->high_priority);
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pa_strbuf_printf(s, "disallow-module-loading = %i\n", !!c->disallow_module_loading);
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pa_strbuf_printf(s, "daemonize = %s\n", pa_yes_no(c->daemonize));
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pa_strbuf_printf(s, "fail = %s\n", pa_yes_no(c->fail));
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pa_strbuf_printf(s, "high-priority = %s\n", pa_yes_no(c->high_priority));
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pa_strbuf_printf(s, "nice-level = %i\n", c->nice_level);
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pa_strbuf_printf(s, "realtime-scheduling = %s\n", pa_yes_no(c->realtime_scheduling));
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pa_strbuf_printf(s, "realtime-priority = %i\n", c->realtime_priority);
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pa_strbuf_printf(s, "disallow-module-loading = %s\n", pa_yes_no(c->disallow_module_loading));
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pa_strbuf_printf(s, "use-pid-file = %s\n", pa_yes_no(c->use_pid_file));
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pa_strbuf_printf(s, "system-instance = %s\n", pa_yes_no(c->system_instance));
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pa_strbuf_printf(s, "no-cpu-limit = %s\n", pa_yes_no(c->no_cpu_limit));
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pa_strbuf_printf(s, "disable-shm = %s\n", pa_yes_no(c->disable_shm));
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pa_strbuf_printf(s, "exit-idle-time = %i\n", c->exit_idle_time);
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pa_strbuf_printf(s, "module-idle-time = %i\n", c->module_idle_time);
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pa_strbuf_printf(s, "scache-idle-time = %i\n", c->scache_idle_time);
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@ -486,10 +563,6 @@ char *pa_daemon_conf_dump(pa_daemon_conf *c) {
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pa_strbuf_printf(s, "log-target = %s\n", c->auto_log_target ? "auto" : (c->log_target == PA_LOG_SYSLOG ? "syslog" : "stderr"));
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pa_strbuf_printf(s, "log-level = %s\n", log_level_to_string[c->log_level]);
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pa_strbuf_printf(s, "resample-method = %s\n", pa_resample_method_to_string(c->resample_method));
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pa_strbuf_printf(s, "use-pid-file = %i\n", c->use_pid_file);
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pa_strbuf_printf(s, "system-instance = %i\n", !!c->system_instance);
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pa_strbuf_printf(s, "no-cpu-limit = %i\n", !!c->no_cpu_limit);
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pa_strbuf_printf(s, "disable-shm = %i\n", !!c->disable_shm);
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pa_strbuf_printf(s, "default-sample-format = %s\n", pa_sample_format_to_string(c->default_sample_spec.format));
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pa_strbuf_printf(s, "default-sample-rate = %u\n", c->default_sample_spec.rate);
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pa_strbuf_printf(s, "default-sample-channels = %u\n", c->default_sample_spec.channels);
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@ -508,6 +581,12 @@ char *pa_daemon_conf_dump(pa_daemon_conf *c) {
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#ifdef RLIMIT_MEMLOCK
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pa_strbuf_printf(s, "rlimit-memlock = %li\n", c->rlimit_memlock.is_set ? (long int) c->rlimit_memlock.value : -1);
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#endif
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#ifdef RLIMIT_NICE
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pa_strbuf_printf(s, "rlimit-nice = %li\n", c->rlimit_memlock.is_set ? (long int) c->rlimit_nice.value : -1);
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#endif
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#ifdef RLIMIT_RTPRIO
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pa_strbuf_printf(s, "rlimit-rtprio = %li\n", c->rlimit_memlock.is_set ? (long int) c->rlimit_rtprio.value : -1);
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#endif
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#endif
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return pa_strbuf_tostring_free(s);
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@ -26,6 +26,7 @@
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***/
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#include <pulsecore/log.h>
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#include <pulsecore/macro.h>
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#include <pulse/sample.h>
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#ifdef HAVE_SYS_RESOURCE_H
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@ -48,29 +49,32 @@ typedef enum pa_daemon_conf_cmd {
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#ifdef HAVE_SYS_RESOURCE_H
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typedef struct pa_rlimit {
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rlim_t value;
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int is_set;
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pa_bool_t is_set;
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} pa_rlimit;
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#endif
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/* A structure containing configuration data for the PulseAudio server . */
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typedef struct pa_daemon_conf {
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pa_daemon_conf_cmd_t cmd;
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int daemonize,
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pa_bool_t daemonize,
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fail,
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high_priority,
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realtime_scheduling,
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disallow_module_loading,
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exit_idle_time,
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module_idle_time,
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scache_idle_time,
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auto_log_target,
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use_pid_file,
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system_instance,
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no_cpu_limit,
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disable_shm;
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int exit_idle_time,
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module_idle_time,
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scache_idle_time,
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auto_log_target,
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realtime_priority,
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nice_level,
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resample_method;
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char *script_commands, *dl_search_path, *default_script_file;
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pa_log_target_t log_target;
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pa_log_level_t log_level;
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int resample_method;
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char *config_file;
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#ifdef HAVE_SYS_RESOURCE_H
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@ -81,6 +85,12 @@ typedef struct pa_daemon_conf {
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#ifdef RLIMIT_MEMLOCK
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pa_rlimit rlimit_memlock;
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#endif
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#ifdef RLIMIT_NICE
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pa_rlimit rlimit_nice;
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#endif
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#ifdef RLIMIT_RTPRIO
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pa_rlimit rlimit_rtprio;
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#endif
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#endif
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unsigned default_n_fragments, default_fragment_size_msec;
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@ -20,24 +20,40 @@
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## Configuration file for the pulseaudio daemon. Default values are
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## commented out. Use either ; or # for commenting
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# Extra verbositiy
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; verbose = 0
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## Daemonize after startup
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; daemonize = 0
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; daemonize = no
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## Quit if startup fails
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; fail = 1
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; fail = yes
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## Renice the daemon to level -15 and try to get SCHED_FIFO
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## scheduling. This a good idea if you hear annyoing noise in the
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## playback. However, this is a certain security issue, since it works
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## when called SUID root only. root is dropped immediately after gaining
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## the nice level and SCHED_FIFO scheduling on startup.
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; high-priority = 0
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## Renice the daemon to level -15. This a good idea if you experience
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## drop-outs in the playback. However, this is a certain security
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||||
## issue, since it works when called SUID root only. root is dropped
|
||||
## immediately after gaining the nice level on startup, thus it is
|
||||
## presumably safe.
|
||||
; high-priority = yes
|
||||
|
||||
## Try to acquire SCHED_FIFO scheduling for the IO threads. The same
|
||||
## security concerns as mentioned above apply. However, if PA enters
|
||||
## an endless loop, realtime scheduling causes a system lockup. Thus,
|
||||
## realtime scheduling should only be enabled on trusted machines for
|
||||
## now. Please not that only the IO threads of PulseAudio are made
|
||||
## real-time. The controlling thread is left a normally scheduled
|
||||
## thread. Thus the enabling the high-priority option is orthogonal.
|
||||
; realtime-scheduling = no
|
||||
|
||||
## The realtime priority to acquire, if realtime-scheduling is
|
||||
## enabled. (Note: JACK uses 10 by default, 9 for clients -- some
|
||||
## PulseAudio threads might choose a priority a little lower or higher
|
||||
## than this value.)
|
||||
; realtime-priority = 5
|
||||
|
||||
## The nice level to acquire for the daemon, if high-priority is
|
||||
## enabled. (Note: on some distributions X11 uses -10 by default.)
|
||||
; nice-level = -11
|
||||
|
||||
## Disallow module loading after startup
|
||||
; disallow-module-loading = 0
|
||||
; disallow-module-loading = no
|
||||
|
||||
## Terminate the daemon after the last client quit and this time
|
||||
## passed. Use a negative value to disable this feature.
|
||||
|
|
@ -63,31 +79,42 @@
|
|||
## true, otherwise to "stderr".
|
||||
; log-target = auto
|
||||
|
||||
# Log level, one of debug, info, notice, warning, error. Log messages
|
||||
# with a lower log level than specified here are not logged,
|
||||
; log-level = notice
|
||||
|
||||
## The resampling algorithm to use. Use one of src-sinc-best-quality,
|
||||
## src-sinc-medium-quality, src-sinc-fastest, src-zero-order-hold,
|
||||
## src-linear, trivial. See the documentation of libsamplerate for an
|
||||
## explanation for the different methods. The method 'trivial' is the
|
||||
## only algorithm implemented without usage of floating point
|
||||
## numbers. If you're tight on CPU consider using this. On the other
|
||||
## hand it has the worst quality of all.
|
||||
; resample-method = sinc-fastest
|
||||
## src-linear, trivial, speex-float-N, speex-fixed-N, ffmpeg. See the
|
||||
## documentation of libsamplerate for an explanation for the different
|
||||
## src- methods. The method 'trivial' is the most basic algorithm
|
||||
## implemented. If you're tight on CPU consider using this. On the
|
||||
## other hand it has the worst quality of them all. The speex
|
||||
## resamplers take an integer quality setting in the range 0..9
|
||||
## (bad...good). They exist in two flavours: fixed and float. The
|
||||
## former uses fixed point numbers, the latter relies on floating
|
||||
## point numbers. On most desktop CPUs the float point resmapler is a
|
||||
## lot faster, and it also offers slightly better quality.
|
||||
; resample-method = speex-float-3
|
||||
|
||||
## Create a PID file in /tmp/pulseaudio-$USER/pid. Of this is enabled
|
||||
## you may use commands like "pulseaudio --kill" or "pulseaudio
|
||||
## --check". If you are planning to start more than one pulseaudio
|
||||
## process per user, you better disable this option since it
|
||||
## effectively disables multiple instances.
|
||||
; use-pid-file = 1
|
||||
; use-pid-file = yes
|
||||
|
||||
## Do not install the CPU load limit, even on platforms where it is
|
||||
## supported. This option is useful when debugging/profiling
|
||||
## PulseAudio to disable disturbing SIGXCPU signals.
|
||||
; no-cpu-limit = 0
|
||||
; no-cpu-limit = no
|
||||
|
||||
## Run the daemon as system-wide instance, requires root priviliges
|
||||
; system-instance = 0
|
||||
; system-instance = no
|
||||
|
||||
## Resource limits, see getrlimit(2) for more information
|
||||
## Resource limits, see getrlimit(2) for more information. Set to -1
|
||||
## if PA shouldn't touch the resource limit. Not all resource limits
|
||||
## are available on all operating systems.
|
||||
; rlimit-as = -1
|
||||
; rlimit-core = -1
|
||||
; rlimit-data = -1
|
||||
|
|
@ -96,9 +123,11 @@
|
|||
; rlimit-stack = -1
|
||||
; rlimit-nproc = -1
|
||||
; rlimit-memlock = 16384
|
||||
; rlimit-nice = 31
|
||||
; rlimit-rtprio = 9
|
||||
|
||||
## Disable shared memory data transfer
|
||||
; disable-shm = 0
|
||||
; disable-shm = no
|
||||
|
||||
## Default sample format
|
||||
; default-sample-format = s16le
|
||||
|
|
|
|||
|
|
@ -307,6 +307,12 @@ static void set_all_rlimits(const pa_daemon_conf *conf) {
|
|||
#ifdef RLIMIT_MEMLOCK
|
||||
set_one_rlimit(&conf->rlimit_memlock, RLIMIT_MEMLOCK, "RLIMIT_MEMLOCK");
|
||||
#endif
|
||||
#ifdef RLIMIT_NICE
|
||||
set_one_rlimit(&conf->rlimit_nice, RLIMIT_NICE, "RLIMIT_NICE");
|
||||
#endif
|
||||
#ifdef RLIMIT_RTPRIO
|
||||
set_one_rlimit(&conf->rlimit_rtprio, RLIMIT_RTPRIO, "RLIMIT_RTPRIO");
|
||||
#endif
|
||||
}
|
||||
#endif
|
||||
|
||||
|
|
|
|||
Loading…
Add table
Add a link
Reference in a new issue