/***
This file is part of PulseAudio.
+ Copyright 2004-2006 Lennart Poettering
+ Copyright 2006 Pierre Ossman <ossman@cendio.se> for Cendio AB
+
PulseAudio is free software; you can redistribute it and/or modify
it under the terms of the GNU Lesser General Public License as published
by the Free Software Foundation; either version 2 of the License,
#include <stdlib.h>
#include <string.h>
-#ifdef HAVE_PTHREAD
-#include <pthread.h>
-#endif
-
-#ifdef HAVE_WINDOWS_H
-#include <windows.h>
-#endif
-
#include <pulse/utf8.h>
#include <pulse/xmalloc.h>
#include <pulsecore/core-util.h>
#include <pulsecore/native-common.h>
+#include <pulsecore/thread.h>
+#include <pulsecore/macro.h>
+#include <pulsecore/log.h>
#include "core-error.h"
-#ifdef HAVE_PTHREAD
-
-static pthread_once_t cstrerror_once = PTHREAD_ONCE_INIT;
-static pthread_key_t tlsstr_key;
-
-static void inittls(void) {
- int ret;
-
- ret = pthread_key_create(&tlsstr_key, pa_xfree);
- if (ret) {
- fprintf(stderr, __FILE__ ": CRITICAL: Unable to allocate TLS key (%d)\n", errno);
- exit(-1);
- }
-}
-
-#elif HAVE_WINDOWS_H
-
-static DWORD tlsstr_key = TLS_OUT_OF_INDEXES;
-static DWORD monitor_key = TLS_OUT_OF_INDEXES;
-
-static void inittls(void) {
- HANDLE mutex;
- char name[64];
-
- sprintf(name, "pulse%d", (int)GetCurrentProcessId());
-
- mutex = CreateMutex(NULL, FALSE, name);
- if (!mutex) {
- fprintf(stderr, __FILE__ ": CRITICAL: Unable to create named mutex (%d)\n", (int)GetLastError());
- exit(-1);
- }
-
- WaitForSingleObject(mutex, INFINITE);
-
- if (tlsstr_key == TLS_OUT_OF_INDEXES) {
- tlsstr_key = TlsAlloc();
- monitor_key = TlsAlloc();
- if ((tlsstr_key == TLS_OUT_OF_INDEXES) || (monitor_key == TLS_OUT_OF_INDEXES)) {
- fprintf(stderr, __FILE__ ": CRITICAL: Unable to allocate TLS key (%d)\n", (int)GetLastError());
- exit(-1);
- }
- }
-
- ReleaseMutex(mutex);
-
- CloseHandle(mutex);
-}
-
-/*
- * This is incredibly brain dead, but this is necessary when dealing with
- * the hell that is Win32.
- */
-struct monitor_data {
- HANDLE thread;
- void *data;
-};
-
-static DWORD WINAPI monitor_thread(LPVOID param) {
- struct monitor_data *data;
-
- data = (struct monitor_data*)param;
- assert(data);
-
- WaitForSingleObject(data->thread, INFINITE);
-
- CloseHandle(data->thread);
- pa_xfree(data->data);
- pa_xfree(data);
-
- return 0;
-}
-
-static void start_monitor(void) {
- HANDLE thread;
- struct monitor_data *data;
-
- data = pa_xnew(struct monitor_data, 1);
- assert(data);
-
- DuplicateHandle(GetCurrentProcess(), GetCurrentThread(),
- GetCurrentProcess(), &data->thread, 0, FALSE, DUPLICATE_SAME_ACCESS);
-
- thread = CreateThread(NULL, 0, monitor_thread, data, 0, NULL);
- assert(thread);
-
- TlsSetValue(monitor_key, data);
-
- CloseHandle(thread);
-}
-
-#else
-
-/* Unsafe, but we have no choice */
-static char *tlsstr;
-
-#endif
+PA_STATIC_TLS_DECLARE(cstrerror, pa_xfree);
const char* pa_cstrerror(int errnum) {
- const char *origbuf;
-
-#ifdef HAVE_STRERROR_R
+ const char *original = NULL;
+ char *translated, *t;
char errbuf[128];
-#endif
-#ifdef HAVE_PTHREAD
- char *tlsstr;
+ if ((t = PA_STATIC_TLS_GET(cstrerror)))
+ pa_xfree(t);
- pthread_once(&cstrerror_once, inittls);
-
- tlsstr = pthread_getspecific(tlsstr_key);
-#elif defined(HAVE_WINDOWS_H)
- char *tlsstr;
- struct monitor_data *data;
-
- inittls();
-
- tlsstr = TlsGetValue(tlsstr_key);
- if (!tlsstr)
- start_monitor();
- data = TlsGetValue(monitor_key);
-#endif
-
- if (tlsstr)
- pa_xfree(tlsstr);
-
-#ifdef HAVE_STRERROR_R
-
-#ifdef __GLIBC__
- origbuf = strerror_r(errnum, errbuf, sizeof(errbuf));
- if (origbuf == NULL)
- origbuf = "";
-#else
+#if defined(HAVE_STRERROR_R) && defined(__GLIBC__)
+ original = strerror_r(errnum, errbuf, sizeof(errbuf));
+#elif defined(HAVE_STRERROR_R)
if (strerror_r(errnum, errbuf, sizeof(errbuf)) == 0) {
- origbuf = errbuf;
- errbuf[sizeof(errbuf) - 1] = '\0';
- } else
- origbuf = "";
-#endif
-
+ errbuf[sizeof(errbuf) - 1] = 0;
+ original = errbuf;
+ }
#else
/* This might not be thread safe, but we hope for the best */
- origbuf = strerror(errnum);
+ original = strerror(errnum);
#endif
- tlsstr = pa_locale_to_utf8(origbuf);
- if (!tlsstr) {
- fprintf(stderr, "Unable to convert, filtering\n");
- tlsstr = pa_utf8_filter(origbuf);
+ if (!original) {
+ pa_snprintf(errbuf, sizeof(errbuf), "Unknown error %i", errnum);
+ original = errbuf;
}
-#ifdef HAVE_PTHREAD
- pthread_setspecific(tlsstr_key, tlsstr);
-#elif defined(HAVE_WINDOWS_H)
- TlsSetValue(tlsstr_key, tlsstr);
- data->data = tlsstr;
-#endif
+ if (!(translated = pa_locale_to_utf8(original))) {
+ pa_log_warn("Unable to convert error string to locale, filtering.");
+ translated = pa_utf8_filter(original);
+ }
+
+ PA_STATIC_TLS_SET(cstrerror, translated);
- return tlsstr;
+ return translated;
}