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-rw-r--r--libc/stdio/_stdio.h153
-rw-r--r--libc/stdio/fflush.c29
-rw-r--r--libc/sysdeps/linux/common/bits/uClibc_stdio.h1
3 files changed, 75 insertions, 108 deletions
diff --git a/libc/stdio/_stdio.h b/libc/stdio/_stdio.h
index 6647a6f0e..4c1e4415f 100644
--- a/libc/stdio/_stdio.h
+++ b/libc/stdio/_stdio.h
@@ -20,75 +20,53 @@
#include <wchar.h>
#endif
-#ifdef __UCLIBC_HAS_THREADS__
-#include <pthread.h>
+#include <bits/uClibc_mutex.h>
-#define __STDIO_THREADLOCK_OPENLIST_ADD \
- do { \
- struct _pthread_cleanup_buffer __infunc_pthread_cleanup_buffer; \
- _pthread_cleanup_push_defer(&__infunc_pthread_cleanup_buffer, \
- __pthread_mutex_unlock, \
- &_stdio_openlist_add_lock); \
- __pthread_mutex_lock(&_stdio_openlist_add_lock); \
-
-#define __STDIO_THREADUNLOCK_OPENLIST_ADD \
- _pthread_cleanup_pop_restore(&__infunc_pthread_cleanup_buffer,1); \
- } while (0)
+#define __STDIO_THREADLOCK_OPENLIST_ADD \
+ __UCLIBC_MUTEX_LOCK(_stdio_openlist_add_lock)
+#define __STDIO_THREADUNLOCK_OPENLIST_ADD \
+ __UCLIBC_MUTEX_UNLOCK(_stdio_openlist_add_lock)
#ifdef __STDIO_BUFFERS
-#define __STDIO_THREADLOCK_OPENLIST_DEL \
- do { \
- struct _pthread_cleanup_buffer __infunc_pthread_cleanup_buffer; \
- _pthread_cleanup_push_defer(&__infunc_pthread_cleanup_buffer, \
- __pthread_mutex_unlock, \
- &_stdio_openlist_del_lock); \
- __pthread_mutex_lock(&_stdio_openlist_del_lock); \
+#define __STDIO_THREADLOCK_OPENLIST_DEL \
+ __UCLIBC_MUTEX_LOCK(_stdio_openlist_del_lock)
-#define __STDIO_THREADUNLOCK_OPENLIST_DEL \
- _pthread_cleanup_pop_restore(&__infunc_pthread_cleanup_buffer,1); \
- } while (0)
+#define __STDIO_THREADUNLOCK_OPENLIST_DEL \
+ __UCLIBC_MUTEX_UNLOCK(_stdio_openlist_del_lock)
-#define __STDIO_OPENLIST_INC_USE \
-do { \
- __STDIO_THREADLOCK_OPENLIST_DEL; \
- ++_stdio_openlist_use_count; \
- __STDIO_THREADUNLOCK_OPENLIST_DEL; \
+#define __STDIO_OPENLIST_INC_USE \
+do { \
+ __STDIO_THREADLOCK_OPENLIST_DEL; \
+ ++_stdio_openlist_use_count; \
+ __STDIO_THREADUNLOCK_OPENLIST_DEL; \
} while (0)
extern void _stdio_openlist_dec_use(void);
-#define __STDIO_OPENLIST_DEC_USE \
+#define __STDIO_OPENLIST_DEC_USE \
_stdio_openlist_dec_use()
-#define __STDIO_OPENLIST_INC_DEL_CNT \
-do { \
- __STDIO_THREADLOCK_OPENLIST_DEL; \
- ++_stdio_openlist_del_count; \
- __STDIO_THREADUNLOCK_OPENLIST_DEL; \
+#define __STDIO_OPENLIST_INC_DEL_CNT \
+do { \
+ __STDIO_THREADLOCK_OPENLIST_DEL; \
+ ++_stdio_openlist_del_count; \
+ __STDIO_THREADUNLOCK_OPENLIST_DEL; \
} while (0)
-#define __STDIO_OPENLIST_DEC_DEL_CNT \
+#define __STDIO_OPENLIST_DEC_DEL_CNT \
do { \
- __STDIO_THREADLOCK_OPENLIST_DEL; \
- --_stdio_openlist_del_count; \
- __STDIO_THREADUNLOCK_OPENLIST_DEL; \
+ __STDIO_THREADLOCK_OPENLIST_DEL; \
+ --_stdio_openlist_del_count; \
+ __STDIO_THREADUNLOCK_OPENLIST_DEL; \
} while (0)
-#endif
-
-#endif /* __UCLIBC_HAS_THREADS__ */
-
-#ifndef __STDIO_THREADLOCK_OPENLIST_ADD
-#define __STDIO_THREADLOCK_OPENLIST_ADD ((void)0)
-#define __STDIO_THREADUNLOCK_OPENLIST_ADD ((void)0)
-#endif
+#endif /* __STDIO_BUFFERS */
#ifndef __STDIO_THREADLOCK_OPENLIST_DEL
#define __STDIO_THREADLOCK_OPENLIST_DEL ((void)0)
#define __STDIO_THREADUNLOCK_OPENLIST_DEL ((void)0)
-/* #define __STDIO_OPENLIST_USE_CNT() (0) */
#define __STDIO_OPENLIST_INC_USE ((void)0)
#define __STDIO_OPENLIST_DEC_USE ((void)0)
#define __STDIO_OPENLIST_INC_DEL_CNT ((void)0)
@@ -176,30 +154,30 @@ extern int __stdio_seek(FILE *stream, register __offmax_t *pos, int whence) attr
/**********************************************************************/
#ifdef __UCLIBC_HAS_WCHAR__
-#define __STDIO_STREAM_IS_NARROW_WRITING(S) \
- (((S)->__modeflags & (__FLAG_WRITING|__FLAG_NARROW)) \
+#define __STDIO_STREAM_IS_NARROW_WRITING(S) \
+ (((S)->__modeflags & (__FLAG_WRITING|__FLAG_NARROW)) \
== (__FLAG_WRITING|__FLAG_NARROW))
-#define __STDIO_STREAM_IS_WIDE_WRITING(S) \
- (((S)->__modeflags & (__FLAG_WRITING|__FLAG_WIDE)) \
+#define __STDIO_STREAM_IS_WIDE_WRITING(S) \
+ (((S)->__modeflags & (__FLAG_WRITING|__FLAG_WIDE)) \
== (__FLAG_WRITING|__FLAG_WIDE))
#if (__FLAG_NARROW <= __MASK_READING)
#error assumption violated regarding __FLAG_NARROW
#endif
-#define __STDIO_STREAM_IS_NARROW_READING(S) \
+#define __STDIO_STREAM_IS_NARROW_READING(S) \
(((S)->__modeflags & (__MASK_READING|__FLAG_NARROW)) > __FLAG_NARROW)
-#define __STDIO_STREAM_IS_WIDE_READING(S) \
+#define __STDIO_STREAM_IS_WIDE_READING(S) \
(((S)->__modeflags & (__MASK_READING|__FLAG_WIDE)) > __FLAG_WIDE)
#define __STDIO_STREAM_IS_NARROW(S) ((S)->__modeflags & __FLAG_NARROW)
#define __STDIO_STREAM_IS_WIDE(S) ((S)->__modeflags & __FLAG_WIDE)
-#define __STDIO_STREAM_SET_NARROW(S) \
+#define __STDIO_STREAM_SET_NARROW(S) \
((void)((S)->__modeflags |= __FLAG_NARROW))
-#define __STDIO_STREAM_SET_WIDE(S) \
+#define __STDIO_STREAM_SET_WIDE(S) \
((void)((S)->__modeflags |= __FLAG_WIDE))
#else
@@ -208,11 +186,11 @@ extern int __stdio_seek(FILE *stream, register __offmax_t *pos, int whence) attr
#define __STDIO_STREAM_IS_NARROW_READING(S) __STDIO_STREAM_IS_READING(S)
-#define __STDIO_STREAM_IS_NARROW(S) (1)
-#define __STDIO_STREAM_IS_WIDE(S) (0)
+#define __STDIO_STREAM_IS_NARROW(S) (1)
+#define __STDIO_STREAM_IS_WIDE(S) (0)
-#define __STDIO_STREAM_SET_NARROW(S) ((void)0)
-#define __STDIO_STREAM_SET_WIDE(S) ((void)0)
+#define __STDIO_STREAM_SET_NARROW(S) ((void)0)
+#define __STDIO_STREAM_SET_WIDE(S) ((void)0)
#endif
/**********************************************************************/
@@ -242,7 +220,7 @@ extern int __stdio_seek(FILE *stream, register __offmax_t *pos, int whence) attr
#else
# define __STDIO_STREAM_DISABLE_GETC(S) ((void)0)
# define __STDIO_STREAM_ENABLE_GETC(S) ((void)0)
-# define __STDIO_STREAM_CAN_USE_BUFFER_GET(S) (0)
+# define __STDIO_STREAM_CAN_USE_BUFFER_GET(S) (0)
#endif
#ifdef __UCLIBC_HAS_STDIO_PUTC_MACRO__
@@ -255,26 +233,28 @@ extern int __stdio_seek(FILE *stream, register __offmax_t *pos, int whence) attr
#else
# define __STDIO_STREAM_DISABLE_PUTC(S) ((void)0)
# define __STDIO_STREAM_ENABLE_PUTC(S) ((void)0)
-# define __STDIO_STREAM_CAN_USE_BUFFER_ADD(S) (0)
+# define __STDIO_STREAM_CAN_USE_BUFFER_ADD(S) (0)
#endif
#ifdef __UCLIBC_HAS_GLIBC_CUSTOM_STREAMS__
#define __STDIO_STREAM_IS_CUSTOM(S) ((S)->__cookie != &((S)->__filedes))
#else
-#define __STDIO_STREAM_IS_CUSTOM(S) (0)
+#define __STDIO_STREAM_IS_CUSTOM(S) (0)
#endif
/**********************************************************************/
#ifdef __STDIO_BUFFERS
-#define __STDIO_STREAM_FREE_BUFFER(S) \
- do { if ((S)->__modeflags & __FLAG_FREEBUF) free((S)->__bufstart); } while (0)
+#define __STDIO_STREAM_FREE_BUFFER(S) \
+ do { if ((S)->__modeflags & __FLAG_FREEBUF) \
+ free((S)->__bufstart); } while (0)
#else
#define __STDIO_STREAM_FREE_BUFFER(S) ((void)0)
#endif
#define __STDIO_STREAM_FREE_FILE(S) \
- do { if ((S)->__modeflags & __FLAG_FREEFILE) free((S)); } while (0)
+ do { if ((S)->__modeflags & __FLAG_FREEFILE) \
+ free((S)); } while (0)
#ifdef __UCLIBC_HAS_LFS__
@@ -296,7 +276,7 @@ extern size_t __stdio_wcommit(FILE *__restrict stream) attribute_hidden;
extern size_t __stdio_rfill(FILE *__restrict stream) attribute_hidden;
extern size_t __stdio_fwrite(const unsigned char *__restrict buffer,
- size_t bytes, FILE *__restrict stream) attribute_hidden;
+ size_t bytes, FILE *__restrict stream) attribute_hidden;
#else
#define __stdio_fwrite(B,N,S) __stdio_WRITE((S),(B),(N))
@@ -304,8 +284,9 @@ extern size_t __stdio_fwrite(const unsigned char *__restrict buffer,
#endif
extern size_t __stdio_WRITE(FILE *stream, const unsigned char *buf,
- size_t bufsize) attribute_hidden;
-extern size_t __stdio_READ(FILE *stream, unsigned char *buf, size_t bufsize) attribute_hidden;
+ size_t bufsize) attribute_hidden;
+extern size_t __stdio_READ(FILE *stream, unsigned char *buf,
+ size_t bufsize) attribute_hidden;
extern int __stdio_trans2r(FILE *__restrict stream) attribute_hidden;
extern int __stdio_trans2w(FILE *__restrict stream) attribute_hidden;
@@ -338,14 +319,14 @@ extern int __stdio_trans2w_o(FILE *__restrict stream, int oflag) attribute_hidde
/* Valid when reading... */
#define __STDIO_STREAM_BUFFER_RAVAIL(S) ((S)->__bufread - (S)->__bufpos)
#define __STDIO_STREAM_BUFFER_GET(S) (*(S)->__bufpos++)
-#define __STDIO_FILL_READ_BUFFER(S) __stdio_rfill((S))
+#define __STDIO_FILL_READ_BUFFER(S) __stdio_rfill((S))
-#define __STDIO_STREAM_INIT_BUFREAD_BUFPOS(S) \
+#define __STDIO_STREAM_INIT_BUFREAD_BUFPOS(S) \
(S)->__bufread = (S)->__bufpos = (S)->__bufstart
#define __STDIO_STREAM_FAKE_VSNPRINTF_FILEDES (-2)
-#define __STDIO_STREAM_FAKE_VSSCANF_FILEDES (-2)
+#define __STDIO_STREAM_FAKE_VSSCANF_FILEDES (-2)
#define __STDIO_STREAM_FAKE_VSWPRINTF_FILEDES (-3)
#define __STDIO_STREAM_FAKE_VSWSCANF_FILEDES (-3)
@@ -360,9 +341,9 @@ extern int __stdio_trans2w_o(FILE *__restrict stream, int oflag) attribute_hidde
#else /* __STDIO_BUFFERS */
-#define __STDIO_STREAM_IS_FBF(S) (0)
-#define __STDIO_STREAM_IS_LBF(S) (0)
-#define __STDIO_STREAM_IS_NBF(S) (1)
+#define __STDIO_STREAM_IS_FBF(S) (0)
+#define __STDIO_STREAM_IS_LBF(S) (0)
+#define __STDIO_STREAM_IS_NBF(S) (1)
#define __STDIO_STREAM_BUFFER_SIZE(S) (0)
#define __STDIO_STREAM_BUFFER_ADD(S,C) ((void)0)
@@ -374,8 +355,8 @@ extern int __stdio_trans2w_o(FILE *__restrict stream, int oflag) attribute_hidde
#define __STDIO_STREAM_BUFFER_RAVAIL(S) (0)
#define __STDIO_STREAM_BUFFER_GET(S) (EOF)
-#define __STDIO_FILL_READ_BUFFER(S) (0)
-#define __STDIO_STREAM_INIT_BUFREAD_BUFPOS(S) ((void)0)
+#define __STDIO_FILL_READ_BUFFER(S) (0)
+#define __STDIO_STREAM_INIT_BUFREAD_BUFPOS(S) ((void)0)
#undef __STDIO_STREAM_FAKE_VSNPRINTF_FILEDES
#undef __STDIO_STREAM_FAKE_VSSCANF_FILEDES
@@ -386,14 +367,14 @@ extern int __stdio_trans2w_o(FILE *__restrict stream, int oflag) attribute_hidde
#undef __STDIO_STREAM_IS_FAKE_VSWPRINTF
# ifdef __USE_OLD_VFPRINTF__
-# define __STDIO_STREAM_FAKE_VSNPRINTF_FILEDES_NB (-2)
-# define __STDIO_STREAM_IS_FAKE_VSNPRINTF_NB(S) \
+# define __STDIO_STREAM_FAKE_VSNPRINTF_FILEDES_NB (-2)
+# define __STDIO_STREAM_IS_FAKE_VSNPRINTF_NB(S) \
((S)->__filedes == __STDIO_STREAM_FAKE_VSNPRINTF_FILEDES_NB)
# endif
# ifndef __UCLIBC_HAS_WCHAR__
-# define __STDIO_STREAM_FAKE_VSSCANF_FILEDES_NB (-2)
-# define __STDIO_STREAM_IS_FAKE_VSSCANF_NB(S) \
+# define __STDIO_STREAM_FAKE_VSSCANF_FILEDES_NB (-2)
+# define __STDIO_STREAM_IS_FAKE_VSSCANF_NB(S) \
((S)->__filedes == __STDIO_STREAM_FAKE_VSSCANF_FILEDES_NB)
# endif
@@ -404,7 +385,8 @@ extern int __stdio_adjust_position(FILE *__restrict stream, __offmax_t *pos) att
#ifdef __STDIO_HAS_OPENLIST
/* Uses an implementation hack!!! */
-#define __STDIO_FLUSH_LBF_STREAMS fflush_unlocked((FILE *) &_stdio_openlist)
+#define __STDIO_FLUSH_LBF_STREAMS \
+ fflush_unlocked((FILE *) &_stdio_openlist)
#else
#define __STDIO_FLUSH_LBF_STREAMS ((void)0)
#endif
@@ -427,13 +409,12 @@ extern void _stdio_validate_FILE(const FILE *stream);
/**********************************************************************/
-extern FILE *_stdio_fopen(intptr_t fname_or_mode,
- const char *__restrict mode,
- FILE *__restrict stream, int filedes) attribute_hidden;
+extern FILE *_stdio_fopen(intptr_t fname_or_mode, const char *__restrict mode,
+ FILE *__restrict stream, int filedes) attribute_hidden;
#ifdef __UCLIBC_HAS_WCHAR__
-extern size_t _wstdio_fwrite(const wchar_t *__restrict ws, size_t n,
- FILE *__restrict stream) attribute_hidden;
+extern size_t _wstdio_fwrite(const wchar_t *__restrict ws,
+ size_t n, FILE *__restrict stream) attribute_hidden;
#endif
/**********************************************************************/
diff --git a/libc/stdio/fflush.c b/libc/stdio/fflush.c
index 84e2a26cc..e1527b3a3 100644
--- a/libc/stdio/fflush.c
+++ b/libc/stdio/fflush.c
@@ -15,31 +15,16 @@ libc_hidden_proto(fflush_unlocked)
#warning WISHLIST: Add option to test for undefined behavior of fflush.
#endif /* __UCLIBC_MJN3_ONLY__ */
-#ifdef __UCLIBC_HAS_THREADS__
/* Even if the stream is set to user-locking, we still need to lock
* when all (lbf) writing streams are flushed. */
-#define __MY_STDIO_THREADLOCK(__stream) \
- do { \
- struct _pthread_cleanup_buffer __infunc_pthread_cleanup_buffer; \
- if (_stdio_user_locking != 2) { \
- _pthread_cleanup_push_defer(&__infunc_pthread_cleanup_buffer, \
- __pthread_mutex_unlock, \
- &(__stream)->__lock); \
- __pthread_mutex_lock(&(__stream)->__lock); \
- } \
- ((void)0)
-
-#define __MY_STDIO_THREADUNLOCK(__stream) \
- if (_stdio_user_locking != 2) { \
- _pthread_cleanup_pop_restore(&__infunc_pthread_cleanup_buffer,1);\
- } \
- } while (0)
-
-#else
-#define __MY_STDIO_THREADLOCK(STREAM) ((void)0)
-#define __MY_STDIO_THREADUNLOCK(STREAM) ((void)0)
-#endif
+#define __MY_STDIO_THREADLOCK(__stream) \
+ __UCLIBC_MUTEX_CONDITIONAL_LOCK((__stream)->__lock, \
+ (_stdio_user_locking != 2))
+
+#define __MY_STDIO_THREADUNLOCK(__stream) \
+ __UCLIBC_MUTEX_CONDITIONAL_UNLOCK((__stream)->__lock, \
+ (_stdio_user_locking != 2))
#if defined(__UCLIBC_HAS_THREADS__) && defined(__STDIO_BUFFERS)
void _stdio_openlist_dec_use(void)
diff --git a/libc/sysdeps/linux/common/bits/uClibc_stdio.h b/libc/sysdeps/linux/common/bits/uClibc_stdio.h
index 5865ce564..7efaed31f 100644
--- a/libc/sysdeps/linux/common/bits/uClibc_stdio.h
+++ b/libc/sysdeps/linux/common/bits/uClibc_stdio.h
@@ -322,6 +322,7 @@ struct __STDIO_FILE_STRUCT {
#define __FLAG_FREEFILE 0x2000U
#define __FLAG_FREEBUF 0x4000U
#define __FLAG_LARGEFILE 0x8000U /* fixed! == 0_LARGEFILE for linux */
+#define __FLAG_FAILED_FREOPEN __FLAG_LARGEFILE
/* Note: In no-buffer mode, it would be possible to pack the necessary
* flags into one byte. Since we wouldn't be buffering and there would
generated by cgit v1.2.3 (git 2.25.1) at 2024-12-15 06:01:43 +0000