[COMMIT osv master] libc: added named semaphore functions to the list of exported symbols

[Commit Bot]

From: Waldemar Kozaczuk <jwkoz...@gmail.com>
Committer: Waldemar Kozaczuk <jwkoz...@gmail.com>
Branch: master

libc: added named semaphore functions to the list of exported symbols

---
diff --git a/exported_symbols/osv_ld-musl.so.1.symbols b/exported_symbols/osv_ld-musl.so.1.symbols
--- a/exported_symbols/osv_ld-musl.so.1.symbols
+++ b/exported_symbols/osv_ld-musl.so.1.symbols
@@ -907,11 +907,14 @@ secure_getenv
seed48
seekdir
select
+sem_close
sem_destroy
sem_init
+sem_open
sem_post
sem_timedwait
sem_trywait
+sem_unlink
sem_wait
send
sendfile
diff --git a/exported_symbols/osv_libc.so.6.symbols b/exported_symbols/osv_libc.so.6.symbols
--- a/exported_symbols/osv_libc.so.6.symbols
+++ b/exported_symbols/osv_libc.so.6.symbols
@@ -837,6 +837,7 @@ strerror_l
strerror_r
strfmon
strfmon_l
+strfromf128
strftime
__strftime_l
strftime_l
@@ -865,6 +866,7 @@ strtod_l
strtof
__strtof_l
strtof_l
+strtof128
strtoimax
strtok
__strtok_r
diff --git a/exported_symbols/osv_libpthread.so.0.symbols b/exported_symbols/osv_libpthread.so.0.symbols
--- a/exported_symbols/osv_libpthread.so.0.symbols
+++ b/exported_symbols/osv_libpthread.so.0.symbols
@@ -94,11 +94,14 @@ read
recv
recvfrom
recvmsg
+sem_close
sem_destroy
sem_init
+sem_open
sem_post
sem_timedwait
sem_trywait
+sem_unlink
sem_wait
send
sendmsg
diff --git a/libc/sem.cc b/libc/sem.cc
--- a/libc/sem.cc
+++ b/libc/sem.cc
@@ -55,7 +55,7 @@ OSV_LIBC_API
int sem_init(sem_t* s, int pshared, unsigned val)
{
static_assert(sizeof(indirect_semaphore) <= sizeof(*s), "sem_t overflow");
- posix_semaphore *sem = new posix_semaphore(val, 1, false);
+ posix_semaphore *sem = new posix_semaphore(val, 1, false);
new (s) indirect_semaphore(sem);
return 0;
}
@@ -114,7 +114,7 @@ sem_t *sem_open(const char *name, int oflag, ...)
{
SCOPE_LOCK(named_semaphores_mutex);
auto iter = named_semaphores.find(std::string(name));
-
+
if (iter != named_semaphores.end()) {
//opening already named semaphore
if (oflag & O_EXCL && oflag & O_CREAT) {
@@ -136,13 +136,13 @@ sem_t *sem_open(const char *name, int oflag, ...)
errno = EINVAL;
return SEM_FAILED;
}
-
+
indirect_semaphore *indp = new std::unique_ptr<posix_semaphore>(
new posix_semaphore(value, 1, true));
named_semaphores.emplace(std::string(name), indp);
return reinterpret_cast<sem_t *>(indp);
}
-
+
errno = ENOENT;
return SEM_FAILED;
}
@@ -160,7 +160,7 @@ int sem_unlink(const char *name)
named_semaphores.erase(iter);
return 0;
}
-
+
errno = ENOENT;
return -1;
}
diff --git a/tests/tst-semaphore.c b/tests/tst-semaphore.c
--- a/tests/tst-semaphore.c
+++ b/tests/tst-semaphore.c
@@ -66,7 +66,7 @@ int main(void) {

//Can't create a new named semaphore without O_CREAT
assert(sem_open("other", 0, 0777, 1) == SEM_FAILED);
- assert(sem_open("other", O_EXCL | O_SYNC, 0777, 1) == SEM_FAILED);
+ assert(sem_open("other", O_EXCL | O_SYNC, 0777, 1) == SEM_FAILED);

//Any other flags should have no effect if the named semaphore does not exist
sem_t *named_sem3 = sem_open("other", O_EXCL | O_CREAT | O_SYNC, 0777, 1);