summaryrefslogtreecommitdiff
diff options
context:
space:
mode:
authorRich Felker <dalias@aerifal.cx>2011-06-07 01:52:27 -0400
committerRich Felker <dalias@aerifal.cx>2011-06-07 01:52:27 -0400
commitab11386aaaffc93755ff86199bf753a6d5ef4b45 (patch)
tree1b10227c0f62b2974127b437537466b6c63f3593
parentcbf35978a9870fb1f5c73a852c986d4fcca6c2d4 (diff)
downloadmusl-ab11386aaaffc93755ff86199bf753a6d5ef4b45.tar.gz
add support for POSIX message queues, except mq_notify
-rw-r--r--include/mqueue.h34
-rw-r--r--src/mq/mq_close.c7
-rw-r--r--src/mq/mq_getattr.c7
-rw-r--r--src/mq/mq_notify.c10
-rw-r--r--src/mq/mq_open.c23
-rw-r--r--src/mq/mq_receive.c6
-rw-r--r--src/mq/mq_send.c6
-rw-r--r--src/mq/mq_setattr.c7
-rw-r--r--src/mq/mq_timedreceive.c7
-rw-r--r--src/mq/mq_timedsend.c7
-rw-r--r--src/mq/mq_unlink.c19
11 files changed, 133 insertions, 0 deletions
diff --git a/include/mqueue.h b/include/mqueue.h
new file mode 100644
index 00000000..ffbf4ae3
--- /dev/null
+++ b/include/mqueue.h
@@ -0,0 +1,34 @@
+#ifndef _SEMAPHORE_H
+#define _SEMAPHORE_H
+#ifdef __cplusplus
+extern "C" {
+#endif
+
+#define __NEED_size_t
+#define __NEED_ssize_t
+#define __NEED_pthread_attr_t
+#define __NEED_time_t
+#define __NEED_struct_timespec
+#include <bits/alltypes.h>
+
+typedef int mqd_t;
+struct mq_attr {
+ long mq_flags, mq_maxmsg, mq_msgsize, mq_curmsgs, __unused[4];
+};
+struct sigevent;
+
+int mq_close(mqd_t);
+int mq_getattr(mqd_t, struct mq_attr *);
+int mq_notify(mqd_t, const struct sigevent *);
+mqd_t mq_open(const char *, int, ...);
+ssize_t mq_receive(mqd_t, char *, size_t, unsigned *);
+int mq_send(mqd_t, const char *, size_t, unsigned);
+int mq_setattr(mqd_t, const struct mq_attr *, struct mq_attr *);
+ssize_t mq_timedreceive(mqd_t, char *, size_t, unsigned *, const struct timespec *);
+int mq_timedsend(mqd_t, const char *, size_t, unsigned, const struct timespec *);
+int mq_unlink(const char *);
+
+#ifdef __cplusplus
+}
+#endif
+#endif
diff --git a/src/mq/mq_close.c b/src/mq/mq_close.c
new file mode 100644
index 00000000..a61f094d
--- /dev/null
+++ b/src/mq/mq_close.c
@@ -0,0 +1,7 @@
+#include <mqueue.h>
+#include "syscall.h"
+
+int mq_close(mqd_t mqd)
+{
+ return syscall(SYS_close, mqd);
+}
diff --git a/src/mq/mq_getattr.c b/src/mq/mq_getattr.c
new file mode 100644
index 00000000..dce18069
--- /dev/null
+++ b/src/mq/mq_getattr.c
@@ -0,0 +1,7 @@
+#include <mqueue.h>
+#include "syscall.h"
+
+int mq_getattr(mqd_t mqd, struct mq_attr *attr)
+{
+ return mq_setattr(mqd, 0, attr);
+}
diff --git a/src/mq/mq_notify.c b/src/mq/mq_notify.c
new file mode 100644
index 00000000..d85db1da
--- /dev/null
+++ b/src/mq/mq_notify.c
@@ -0,0 +1,10 @@
+#include <mqueue.h>
+#include <pthread.h>
+#include <errno.h>
+#include "syscall.h"
+
+int mq_notify(mqd_t mqd, const struct sigevent *sev)
+{
+ errno = ENOSYS;
+ return -1;
+}
diff --git a/src/mq/mq_open.c b/src/mq/mq_open.c
new file mode 100644
index 00000000..57220a2b
--- /dev/null
+++ b/src/mq/mq_open.c
@@ -0,0 +1,23 @@
+#include <mqueue.h>
+#include <fcntl.h>
+#include <errno.h>
+#include <stdarg.h>
+#include "syscall.h"
+
+mqd_t mq_open(const char *name, int flags, ...)
+{
+ mode_t mode = 0;
+ struct mq_attr *attr = 0;
+ if (*name++ != '/') {
+ errno = EINVAL;
+ return -1;
+ }
+ if (flags & O_CREAT) {
+ va_list ap;
+ va_start(ap, flags);
+ mode = va_arg(ap, mode_t);
+ attr = va_arg(ap, struct mq_attr *);
+ va_end(ap);
+ }
+ return syscall(SYS_mq_open, name, flags, mode, attr);
+}
diff --git a/src/mq/mq_receive.c b/src/mq/mq_receive.c
new file mode 100644
index 00000000..0b1bb4e4
--- /dev/null
+++ b/src/mq/mq_receive.c
@@ -0,0 +1,6 @@
+#include <mqueue.h>
+
+ssize_t mq_receive(mqd_t mqd, char *msg, size_t len, unsigned *prio)
+{
+ return mq_timedreceive(mqd, msg, len, prio, 0);
+}
diff --git a/src/mq/mq_send.c b/src/mq/mq_send.c
new file mode 100644
index 00000000..1acb1b78
--- /dev/null
+++ b/src/mq/mq_send.c
@@ -0,0 +1,6 @@
+#include <mqueue.h>
+
+int mq_send(mqd_t mqd, const char *msg, size_t len, unsigned prio)
+{
+ return mq_timedsend(mqd, msg, len, prio, 0);
+}
diff --git a/src/mq/mq_setattr.c b/src/mq/mq_setattr.c
new file mode 100644
index 00000000..9064fa07
--- /dev/null
+++ b/src/mq/mq_setattr.c
@@ -0,0 +1,7 @@
+#include <mqueue.h>
+#include "syscall.h"
+
+int mq_setattr(mqd_t mqd, const struct mq_attr *new, struct mq_attr *old)
+{
+ return syscall(SYS_mq_getsetattr, mqd, new, old);
+}
diff --git a/src/mq/mq_timedreceive.c b/src/mq/mq_timedreceive.c
new file mode 100644
index 00000000..ad705f8b
--- /dev/null
+++ b/src/mq/mq_timedreceive.c
@@ -0,0 +1,7 @@
+#include <mqueue.h>
+#include "syscall.h"
+
+ssize_t mq_timedreceive(mqd_t mqd, char *msg, size_t len, unsigned *prio, const struct timespec *at)
+{
+ return syscall(SYS_mq_timedreceive, mqd, msg, len, prio, at);
+}
diff --git a/src/mq/mq_timedsend.c b/src/mq/mq_timedsend.c
new file mode 100644
index 00000000..edbaccf9
--- /dev/null
+++ b/src/mq/mq_timedsend.c
@@ -0,0 +1,7 @@
+#include <mqueue.h>
+#include "syscall.h"
+
+int mq_timedsend(mqd_t mqd, const char *msg, size_t len, unsigned prio, const struct timespec *at)
+{
+ return syscall(SYS_mq_timedsend, mqd, msg, len, prio, at);
+}
diff --git a/src/mq/mq_unlink.c b/src/mq/mq_unlink.c
new file mode 100644
index 00000000..1bb92af1
--- /dev/null
+++ b/src/mq/mq_unlink.c
@@ -0,0 +1,19 @@
+#include <mqueue.h>
+#include <errno.h>
+#include "syscall.h"
+
+int mq_unlink(const char *name)
+{
+ int ret;
+ if (*name++ != '/') {
+ errno = EINVAL;
+ return -1;
+ }
+ ret = __syscall(SYS_mq_unlink, name);
+ if (ret < 0) {
+ if (ret == -EPERM) ret = -EACCES;
+ errno = -ret;
+ return -1;
+ }
+ return ret;
+}