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Diffstat (limited to 'libc/sysdeps/linux/sh/pread_write.c')
-rw-r--r--libc/sysdeps/linux/sh/pread_write.c58
1 files changed, 50 insertions, 8 deletions
diff --git a/libc/sysdeps/linux/sh/pread_write.c b/libc/sysdeps/linux/sh/pread_write.c
index 84a28e766..76c750ad6 100644
--- a/libc/sysdeps/linux/sh/pread_write.c
+++ b/libc/sysdeps/linux/sh/pread_write.c
@@ -18,6 +18,13 @@
#include <stdint.h>
#include <endian.h>
+#ifdef __UCLIBC_HAS_THREADS_NATIVE__
+#include <sysdep-cancel.h>
+#else
+#define SINGLE_THREAD_P 1
+#endif
+
+
#ifdef __NR_pread64 /* Newer kernels renamed but it's the same. */
# ifdef __NR_pread
# error "__NR_pread and __NR_pread64 both defined???"
@@ -32,18 +39,35 @@ static __inline__ _syscall6(ssize_t, __syscall_pread, int, fd, void *, buf,
size_t, count, int, dummy, off_t, offset_hi, off_t, offset_lo)
ssize_t __libc_pread(int fd, void *buf, size_t count, off_t offset)
-{
- return(__syscall_pread(fd,buf,count,0,__LONG_LONG_PAIR(offset >> 31,offset)));
+{
+ if (SINGLE_THREAD_P)
+ return(__syscall_pread(fd,buf,count,0,__LONG_LONG_PAIR(offset >> 31,offset)));
+
+#ifdef __UCLIBC_HAS_THREADS_NATIVE__
+ int oldtype = LIBC_CANCEL_ASYNC ();
+ ssize_t result = __syscall_pread(fd,buf,count,0,__LONG_LONG_PAIR(offset >> 31,offset));
+ LIBC_CANCEL_RESET (oldtype);
+ return result;
+#endif
}
weak_alias(__libc_pread,pread)
# ifdef __UCLIBC_HAS_LFS__
extern __typeof(pread64) __libc_pread64;
ssize_t __libc_pread64(int fd, void *buf, size_t count, off64_t offset)
-{
+{
uint32_t low = offset & 0xffffffff;
uint32_t high = offset >> 32;
- return(__syscall_pread(fd, buf, count, 0, __LONG_LONG_PAIR (high, low)));
+
+ if (SINGLE_THREAD_P)
+ return __syscall_pread(fd, buf, count, 0, __LONG_LONG_PAIR (high, low));
+
+#ifdef __UCLIBC_HAS_THREADS_NATIVE__
+ int oldtype = LIBC_CANCEL_ASYNC ();
+ ssize_t result = __syscall_pread(fd, buf, count, 0, __LONG_LONG_PAIR (high, low));
+ LIBC_CANCEL_RESET (oldtype);
+ return result;
+#endif
}
weak_alias(__libc_pread64,pread64)
# endif /* __UCLIBC_HAS_LFS__ */
@@ -65,18 +89,36 @@ static __inline__ _syscall6(ssize_t, __syscall_pwrite, int, fd, const void *, bu
size_t, count, int, dummy, off_t, offset_hi, off_t, offset_lo)
ssize_t __libc_pwrite(int fd, const void *buf, size_t count, off_t offset)
-{
- return(__syscall_pwrite(fd,buf,count,0,__LONG_LONG_PAIR(offset >> 31,offset)));
+{
+ if (SINGLE_THREAD_P)
+ return __syscall_pwrite(fd,buf,count,0,__LONG_LONG_PAIR(offset >> 31,offset));
+
+#ifdef __UCLIBC_HAS_THREADS_NATIVE__
+ int oldtype = LIBC_CANCEL_ASYNC ();
+ ssize_t result = __syscall_pwrite(fd,buf,count,0,__LONG_LONG_PAIR(offset >> 31,offset));
+ LIBC_CANCEL_RESET (oldtype);
+ return result;
+#endif
+
}
weak_alias(__libc_pwrite,pwrite)
# ifdef __UCLIBC_HAS_LFS__
extern __typeof(pwrite64) __libc_pwrite64;
ssize_t __libc_pwrite64(int fd, const void *buf, size_t count, off64_t offset)
-{
+{
uint32_t low = offset & 0xffffffff;
uint32_t high = offset >> 32;
- return(__syscall_pwrite(fd, buf, count, 0, __LONG_LONG_PAIR (high, low)));
+
+ if (SINGLE_THREAD_P)
+ return __syscall_pwrite(fd, buf, count, 0, __LONG_LONG_PAIR (high, low));
+
+#ifdef __UCLIBC_HAS_THREADS_NATIVE__
+ int oldtype = LIBC_CANCEL_ASYNC ();
+ ssize_t result = __syscall_pwrite(fd, buf, count, 0, __LONG_LONG_PAIR (high, low));
+ LIBC_CANCEL_RESET (oldtype);
+ return result;
+#endif
}
weak_alias(__libc_pwrite64,pwrite64)
# endif /* __UCLIBC_HAS_LFS__ */