From ff88223ea6024e1396a23947f3c2ada6bd017a6c Mon Sep 17 00:00:00 2001
From: officeyutong <yt.xyxx@gmail.com>
Date: Wed, 21 Aug 2024 21:17:31 +0800
Subject: [PATCH] update

---
 runtime/src/bpftime_shm.cpp | 79 ++++++++++++++-----------------------
 1 file changed, 30 insertions(+), 49 deletions(-)

diff --git a/runtime/src/bpftime_shm.cpp b/runtime/src/bpftime_shm.cpp
index df7903d3..91075019 100644
--- a/runtime/src/bpftime_shm.cpp
+++ b/runtime/src/bpftime_shm.cpp
@@ -26,32 +26,35 @@
 
 #ifdef __APPLE__
 // Custom implementation for sigtimedwait
-int sigtimedwait(const sigset_t *set, siginfo_t *info, const struct timespec *timeout) {
-    struct timespec start, now;
-    clock_gettime(CLOCK_REALTIME, &start);
-    int sig;
-
-    while (true) {
-        // Try to wait for a signal
-        if (sigwait(set, &sig) == 0) {
-            if (info != nullptr) {
-                memset(info, 0, sizeof(*info));
-                info->si_signo = sig;
-            }
-            return sig;
-        }
-
-        // Check if the timeout has expired
-        clock_gettime(CLOCK_REALTIME, &now);
-        if ((now.tv_sec - start.tv_sec) > timeout->tv_sec ||
-            ((now.tv_sec - start.tv_sec) == timeout->tv_sec && (now.tv_nsec - start.tv_nsec) > timeout->tv_nsec)) {
-            errno = EAGAIN;
-            return -1;
-        }
-
-        // Sleep for a short time before retrying
-        usleep(1000); // Sleep for 1ms before retrying
-    }
+int sigtimedwait(const sigset_t *set, siginfo_t *info,
+		 const struct timespec *timeout)
+{
+	struct timespec start, now;
+	clock_gettime(CLOCK_REALTIME, &start);
+	int sig;
+
+	while (true) {
+		// Try to wait for a signal
+		if (sigwait(set, &sig) == 0) {
+			if (info != nullptr) {
+				memset(info, 0, sizeof(*info));
+				info->si_signo = sig;
+			}
+			return sig;
+		}
+
+		// Check if the timeout has expired
+		clock_gettime(CLOCK_REALTIME, &now);
+		if ((now.tv_sec - start.tv_sec) > timeout->tv_sec ||
+		    ((now.tv_sec - start.tv_sec) == timeout->tv_sec &&
+		     (now.tv_nsec - start.tv_nsec) > timeout->tv_nsec)) {
+			errno = EAGAIN;
+			return -1;
+		}
+
+		// Sleep for a short time before retrying
+		usleep(1000); // Sleep for 1ms before retrying
+	}
 }
 #endif
 
@@ -210,28 +213,6 @@ void bpftime_close(int fd)
 	shm_holder.global_shared_memory.close_fd(fd);
 }
 
-const char * expand_filename(const char *filename)
-{
-	const char *home_dir = getenv("HOME");
-	if (home_dir == NULL) {
-		SPDLOG_INFO("Error: HOME environment variable is not set");
-		return NULL;
-	}
-
-	size_t size = strlen(home_dir) + strlen(filename) + 1;
-	char *absolute_path = (char *)malloc(size);
-	if (absolute_path == NULL) {
-		SPDLOG_INFO("Error: Memory allocation failed");
-		return NULL;
-	}
-
-	sprintf(absolute_path, "%s/%s", home_dir, filename);
-	const char *result = strdup(absolute_path);
-	free(absolute_path);
-
-	return result;
-}
-
 int bpftime_map_get_info(int fd, bpftime::bpf_map_attr *out_attr,
 			 const char **out_name, bpftime::bpf_map_type *type)
 {
@@ -566,7 +547,7 @@ int bpftime_shared_perf_event_output(int map_fd, const void *buf, size_t sz)
 		return -1;
 	}
 }
-#endif 
+#endif
 
 int bpftime_is_prog_array(int fd)
 {