From a67c21f093202f142438689d3f7cfbdf4ea82eea Mon Sep 17 00:00:00 2001
From: Lennart Poettering <lennart@poettering.net>
Date: Sun, 28 Oct 2007 19:13:50 +0000
Subject: merge 'lennart' branch back into trunk.

git-svn-id: file:///home/lennart/svn/public/pulseaudio/trunk@1971 fefdeb5f-60dc-0310-8127-8f9354f1896f
---
 src/pulsecore/core-error.c | 178 +++++++--------------------------------------
 1 file changed, 25 insertions(+), 153 deletions(-)

(limited to 'src/pulsecore/core-error.c')

diff --git a/src/pulsecore/core-error.c b/src/pulsecore/core-error.c
index 044bea12..8a61e726 100644
--- a/src/pulsecore/core-error.c
+++ b/src/pulsecore/core-error.c
@@ -31,178 +31,50 @@
 #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;
 }
-- 
cgit