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core-util: add api for setting env vars and record them so that we can undo them n fork

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This commit is contained in:
Lennart Poettering 2009-09-02 00:34:27 +02:00
parent 45513a2077
commit 5f929963d1
2 changed files with 32 additions and 0 deletions
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30
src/pulsecore/core-util.c
View file

@ -116,6 +116,7 @@
#include <pulsecore/thread.h>
#include <pulsecore/strbuf.h>
#include <pulsecore/usergroup.h>
#include <pulsecore/strlist.h>
#include "core-util.h"
@ -124,6 +125,8 @@
#define MSG_NOSIGNAL 0
#endif
static pa_strlist *recorded_env = NULL;
#ifdef OS_IS_WIN32
#define PULSE_ROOTENV "PULSE_ROOT"
@ -2451,9 +2454,36 @@ void pa_set_env(const char *key, const char *value) {
pa_assert(key);
pa_assert(value);
/* This is not thread-safe */
putenv(pa_sprintf_malloc("%s=%s", key, value));
}
void pa_set_env_and_record(const char *key, const char *value) {
pa_assert(key);
pa_assert(value);
/* This is not thread-safe */
pa_set_env(key, value);
recorded_env = pa_strlist_prepend(recorded_env, key);
}
void pa_unset_env_recorded(void) {
/* This is not thread-safe */
for (;;) {
char *s = NULL;
if (!(recorded_env = pa_strlist_pop(recorded_env, &s)))
break;
unsetenv(s);
pa_xfree(s);
}
}
pa_bool_t pa_in_system_mode(void) {
const char *e;

2
src/pulsecore/core-util.h
View file

@ -195,6 +195,8 @@ int pa_reset_sigs(int except, ...);
int pa_reset_sigsv(const int except[]);
void pa_set_env(const char *key, const char *value);
void pa_set_env_and_record(const char *key, const char *value);
void pa_unset_env_recorded(void);
pa_bool_t pa_in_system_mode(void);