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core-util: Add pa_unset_env()

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Since we already have pa_set_env(), it's nice to also have a
corresponding function for unsetting environment variables.
This commit is contained in:
Tanu Kaskinen 2014-10-02 12:14:09 +03:00
parent 0e44b127d0
commit f04e31dc5e
3 changed files with 15 additions and 6 deletions
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18
src/pulsecore/core-util.c
View file

@ -2859,6 +2859,18 @@ void pa_set_env(const char *key, const char *value) {
#endif
}
void pa_unset_env(const char *key) {
pa_assert(key);
/* This is not thread-safe */
#ifdef OS_IS_WIN32
SetEnvironmentVariable(key, NULL);
#else
unsetenv(key);
#endif
}
void pa_set_env_and_record(const char *key, const char *value) {
pa_assert(key);
pa_assert(value);
@ -2881,11 +2893,7 @@ void pa_unset_env_recorded(void) {
if (!s)
break;
#ifdef OS_IS_WIN32
SetEnvironmentVariable(s, NULL);
#else
unsetenv(s);
#endif
pa_unset_env(s);
pa_xfree(s);
}
}

1
src/pulsecore/core-util.h
View file

@ -210,6 +210,7 @@ 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_unset_env(const char *key);
void pa_set_env_and_record(const char *key, const char *value);
void pa_unset_env_recorded(void);

2
src/pulsecore/start-child.c
View file

@ -92,7 +92,7 @@ int pa_start_child_for_read(const char *name, const char *argv1, pid_t *pid) {
/* Make sure our children are not influenced by the
* LD_BIND_NOW we set for ourselves. */
unsetenv("LD_BIND_NOW");
pa_unset_env("LD_BIND_NOW");
#ifdef PR_SET_PDEATHSIG
/* On Linux we can use PR_SET_PDEATHSIG to have the helper