Changeset f0950d2 in mainline

Timestamp:

2025-06-17T13:23:57Z (5 days ago)

Author:

Miroslav Cimerman <mc@…>

Children:

d574c11

Parents:

234212a

Message:

hr: add malloc_waitok() and calloc_waitok()

Location:

uspace/srv/bd/hr

Files:

• util.c (modified) (1 diff)
• util.h (modified) (1 diff)

uspace/srv/bd/hr/util.c

@@ -76 +76 @@
 extern fibril_rwlock_t hr_volumes_lock;
 
+/*
+ * malloc() wrapper that behaves like
+ * FreeBSD malloc(9) with M_WAITOK flag.
+ *
+ * Return value is never NULL.
+ */
+void *malloc_waitok(size_t size)
+{
+        void *ret;
+        while ((ret = malloc(size)) == NULL)
+                fibril_usleep(MSEC2USEC(250)); /* sleep 250ms */
+
+        return ret;
+}
+
+void *calloc_waitok(size_t nmemb, size_t size)
+{
+        void *ret;
+        while ((ret = calloc(nmemb, size)) == NULL)
+                fibril_usleep(MSEC2USEC(250)); /* sleep 250ms */
+
+        return ret;
+}
+
 errno_t hr_create_vol_struct(hr_volume_t **rvol, hr_level_t level,
     const char *devname, hr_metadata_type_t metadata_type)

uspace/srv/bd/hr/util.h

@@ -77 +77 @@
 } hr_range_lock_t;
 
+extern void *malloc_waitok(size_t)
+    __attribute__((malloc));
+
+extern void *calloc_waitok(size_t, size_t)
+    __attribute__((malloc));
+
 extern errno_t hr_create_vol_struct(hr_volume_t **, hr_level_t, const char *,
     hr_metadata_type_t);