posix: signal: type corrections for sigval, sigevent, notify attr

* `struct sigevent` is not type-defined
* `union sigval` is not type-defined
* `struct sigevent` must include `sigev_notify_attributes`

For more information, see https://bit.ly/3YfnELI

Signed-off-by: Christopher Friedt <[email protected]>

Author: cfriedt

include/zephyr/posix/posix_types.h

@@ -35,7 +35,6 @@ typedef uint32_t clockid_t;
 typedef unsigned long timer_t;
 #endif
 
-#ifdef CONFIG_PTHREAD_IPC
 /* Thread attributes */
 struct pthread_attr {
 	int priority;
@@ -101,8 +100,6 @@ typedef struct pthread_rwlock_obj {
 	k_tid_t wr_owner;
 } pthread_rwlock_t;
 
-#endif /* CONFIG_PTHREAD_IPC */
-
 #ifdef __cplusplus
 }
 #endif

include/zephyr/posix/signal.h

@@ -77,20 +77,18 @@ int sigismember(const sigset_t *set, int signo);
 
 typedef int	sig_atomic_t;		/* Atomic entity type (ANSI) */
 
-typedef union sigval {
+union sigval {
 	int sival_int;
 	void *sival_ptr;
-} sigval;
+};
 
-typedef struct sigevent {
+struct sigevent {
 	int sigev_notify;
 	int sigev_signo;
-	sigval sigev_value;
-	void (*sigev_notify_function)(sigval val);
-	#ifdef CONFIG_PTHREAD_IPC
+	union sigval sigev_value;
+	void (*sigev_notify_function)(union sigval val);
 	pthread_attr_t *sigev_notify_attributes;
-	#endif
-} sigevent;
+};
 
 #ifdef __cplusplus
 }

lib/posix/timer.c

@@ -7,6 +7,7 @@
 #include <errno.h>
 #include <string.h>
 #include <zephyr/sys/printk.h>
+#include <zephyr/posix/signal.h>
 #include <zephyr/posix/time.h>
 
 #define ACTIVE 1
@@ -16,8 +17,8 @@ static void zephyr_timer_wrapper(struct k_timer *ztimer);
 
 struct timer_obj {
 	struct k_timer ztimer;
-	void (*sigev_notify_function)(sigval val);
-	sigval val;
+	void (*sigev_notify_function)(union sigval val);
+	union sigval val;
 	struct timespec interval;	/* Reload value */
 	uint32_t reload;			/* Reload value in ms */
 	uint32_t status;