Takashi Iwai wrote:
At Thu, 15 Feb 2007 16:40:17 +0200,
Constantine Gavrilov wrote:
+#define DSP_OPEN() \
+{ \
+ fd = lib_oss_pcm_open(file, oflag); \
+ if (fd >= 0) { \
+ int nfds; \
+ fds[fd] = calloc(sizeof(fd_t), 1); \
+ if (fds[fd] == NULL) { \
+ ops[FD_OSS_DSP].close(fd); \
+ errno = ENOMEM; \
+ return -1; \
+ } \
+ fds[fd]->class = FD_OSS_DSP; \
+ fds[fd]->oflags = oflag; \
+ nfds = lib_oss_pcm_poll_fds(fd); \
+ if (nfds > 0) { \
+ fds[fd]->poll_fds = nfds; \
+ poll_fds_add += nfds; \
+ } \
+ } \
+}
+
+#define MIXER_OPEN() \
+{ \
+ fd = lib_oss_mixer_open(file, oflag); \
+ if (fd >= 0) { \
+ fds[fd] = calloc(sizeof(fd_t), 1); \
+ if (fds[fd] == NULL) { \
+ ops[FD_OSS_MIXER].close(fd); \
+ errno = ENOMEM; \
+ return -1; \
+ } \
+ fds[fd]->class = FD_OSS_MIXER; \
+ fds[fd]->oflags = oflag; \
+ } \
+}
These are not necessarily macros unlike DECL_OPEN. Static functions
would be much better. Could you fix it?
Thanks,
Takashi
OK. Attached. Not changed in the bug tracking system as I could not
find a way to remove original patch.
--
----------------------------------------
Constantine Gavrilov
Kernel Developer
Qlusters Software Ltd
1 Azrieli Center, Tel-Aviv
Phone: +972-3-6081977
Fax: +972-3-6081841
----------------------------------------
|
--- alsa/alsa-oss.c.orig 2007-02-18 13:29:08.000000000 +0200
+++ alsa/alsa-oss.c 2007-02-18 13:37:45.000000000 +0200
@@ -69,6 +69,7 @@
static int (*_select)(int n, fd_set *readfds, fd_set *writefds, fd_set *exceptfds, struct timeval *timeout);
static int (*_poll)(struct pollfd *ufds, unsigned int nfds, int timeout);
static int (*_open)(const char *file, int oflag, ...);
+static int (*_open64)(const char *file, int oflag, ...);
static int (*_close)(int fd);
static ssize_t (*_write)(int fd, const void *buf, size_t n);
static ssize_t (*_read)(int fd, void *buf, size_t n);
@@ -78,6 +79,7 @@
static int (*_munmap)(void* addr, size_t len);
static FILE *(*_fopen)(const char *path, const char *mode);
+static FILE *(*_fopen64)(const char *path, const char *mode);
typedef struct ops {
int (*close)(int fd);
@@ -242,58 +244,74 @@
},
};
-int open(const char *file, int oflag, ...)
+static int dsp_open_helper(const char *file, int oflag)
{
- va_list args;
- mode_t mode = 0;
int fd;
-
- if (!initialized)
- initialize();
-
- if (oflag & O_CREAT) {
- va_start(args, oflag);
- mode = va_arg(args, mode_t);
- va_end(args);
- }
- if (is_dsp_device(file)) {
- fd = lib_oss_pcm_open(file, oflag);
- if (fd >= 0) {
- int nfds;
- fds[fd] = calloc(sizeof(fd_t), 1);
- if (fds[fd] == NULL) {
- ops[FD_OSS_DSP].close(fd);
- errno = ENOMEM;
- return -1;
- }
- fds[fd]->class = FD_OSS_DSP;
- fds[fd]->oflags = oflag;
- nfds = lib_oss_pcm_poll_fds(fd);
- if (nfds > 0) {
- fds[fd]->poll_fds = nfds;
- poll_fds_add += nfds;
- }
+ fd = lib_oss_pcm_open(file, oflag);
+ if (fd >= 0) {
+ int nfds;
+ fds[fd] = calloc(sizeof(fd_t), 1);
+ if (fds[fd] == NULL) {
+ ops[FD_OSS_DSP].close(fd);
+ errno = ENOMEM;
+ return -1;
}
- } else if (is_mixer_device(file)) {
- fd = lib_oss_mixer_open(file, oflag);
- if (fd >= 0) {
- fds[fd] = calloc(sizeof(fd_t), 1);
- if (fds[fd] == NULL) {
- ops[FD_OSS_MIXER].close(fd);
- errno = ENOMEM;
- return -1;
- }
- fds[fd]->class = FD_OSS_MIXER;
- fds[fd]->oflags = oflag;
+ fds[fd]->class = FD_OSS_DSP;
+ fds[fd]->oflags = oflag;
+ nfds = lib_oss_pcm_poll_fds(fd);
+ if (nfds > 0) {
+ fds[fd]->poll_fds = nfds;
+ poll_fds_add += nfds;
}
- } else {
- fd = _open(file, oflag, mode);
- if (fd >= 0)
- assert(fds[fd] == NULL);
}
return fd;
}
+static int mixer_open_helper(const char *file, int oflag)
+{
+ int fd;
+ fd = lib_oss_mixer_open(file, oflag);
+ if (fd >= 0) {
+ fds[fd] = calloc(sizeof(fd_t), 1);
+ if (fds[fd] == NULL) {
+ ops[FD_OSS_MIXER].close(fd);
+ errno = ENOMEM;
+ return -1;
+ }
+ fds[fd]->class = FD_OSS_MIXER;
+ fds[fd]->oflags = oflag;
+ }
+ return fd;
+}
+
+#define DECL_OPEN(name, callback) \
+int name(const char *file, int oflag, ...) \
+{ \
+ va_list args; \
+ mode_t mode = 0; \
+ int fd; \
+ if (!initialized) \
+ initialize(); \
+ if (oflag & O_CREAT) { \
+ va_start(args, oflag); \
+ mode = va_arg(args, mode_t); \
+ va_end(args); \
+ } \
+ if (is_dsp_device(file)) \
+ dsp_open_helper(file, oflag); \
+ else if (is_mixer_device(file)) \
+ mixer_open_helper(file, oflag); \
+ else { \
+ fd = callback(file, oflag, mode); \
+ if (fd >= 0) \
+ assert(fds[fd] == NULL); \
+ } \
+ return fd; \
+}
+
+DECL_OPEN(open, _open)
+DECL_OPEN(open64, _open64)
+
int close(int fd)
{
if (!initialized)
@@ -730,7 +748,7 @@
initialize();
if (!is_dsp_device(path))
- return _fopen(path, mode);
+ return _fopen64(path, mode);
return fake_fopen(path, mode, O_LARGEFILE);
}
@@ -766,19 +784,6 @@
}
#endif
-int open64(const char *file, int oflag, ...)
-{
- va_list args;
- mode_t mode = 0;
-
- if (oflag & O_CREAT) {
- va_start(args, oflag);
- mode = va_arg(args, mode_t);
- va_end(args);
- }
- return open(file, oflag | O_LARGEFILE, mode);
-}
-
# define strong_alias(name, aliasname) \
extern __typeof (name) aliasname __attribute__ ((alias (#name)));
@@ -809,6 +814,7 @@
if (!fds)
exit(1);
_open = dlsym(RTLD_NEXT, "open");
+ _open64 = dlsym(RTLD_NEXT, "open64");
_close = dlsym(RTLD_NEXT, "close");
_write = dlsym(RTLD_NEXT, "write");
_read = dlsym(RTLD_NEXT, "read");
@@ -819,5 +825,6 @@
_select = dlsym(RTLD_NEXT, "select");
_poll = dlsym(RTLD_NEXT, "poll");
_fopen = dlsym(RTLD_NEXT, "fopen");
+ _fopen64 = dlsym(RTLD_NEXT, "fopen64");
initialized = 1;
}
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