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Processing (Linux): cache the index of $LANG

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李通洲
2025-07-15 10:15:39 +08:00
parent cc8f8ff0f7
commit 6f3ed4a7b4
1 changed files with 34 additions and 8 deletions
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src/common/processing_linux.c
+34 -8
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@@ -53,6 +53,8 @@ static inline int ffPipe2(int* fds, int flags)
#endif
}
// Not thread-safe
const char* ffProcessAppendOutput(FFstrbuf* buffer, char* const argv[], bool useStdErr)
{
int pipes[2];
@@ -67,16 +69,40 @@ const char* ffProcessAppendOutput(FFstrbuf* buffer, char* const argv[], bool use
posix_spawn_file_actions_addopen(&file_actions, useStdErr ? STDOUT_FILENO : STDERR_FILENO, "/dev/null", O_WRONLY, 0);
pid_t childPid = -1;
char* oldLang = NULL;
int langIndex = -1;
for (int i = 0; environ[i] != NULL; i++)
static char* oldLang = NULL;
static int langIndex = -1;
if (langIndex >= 0)
{
if (ffStrStartsWith(environ[i], "LANG="))
// Found before
if (oldLang) // oldLang was set only if it needed to be changed
{
oldLang = environ[i];
environ[i] = (char*) "LANG=C";
langIndex = i;
break;
if (environ[langIndex] != oldLang)
{
// environ is changed outside of this function
langIndex = -1;
}
else
environ[langIndex] = (char*) "LANG=C.UTF-8";
}
}
if (langIndex < 0)
{
for (int i = 0; environ[i] != NULL; i++)
{
if (ffStrStartsWith(environ[i], "LANG="))
{
langIndex = i;
const char* langValue = environ[i] + 5; // Skip "LANG="
if (ffStrEqualsIgnCase(langValue, "C") ||
ffStrStartsWithIgnCase(environ[i], "C.") ||
ffStrEqualsIgnCase(langValue, "en_US") ||
ffStrStartsWithIgnCase(langValue, "en_US."))
break; // No need to change LANG
oldLang = environ[i];
environ[i] = (char*) "LANG=C.UTF-8"; // Set LANG to C.UTF-8 for consistent output
break;
}
}
}