# define QEMU_VMALLOC_ALIGN getpagesize()
#endif
+#include <glib/gprintf.h>
+
#include "config-host.h"
#include "sysemu/sysemu.h"
#include "trace.h"
}
/* alloc shared memory pages */
-void *qemu_vmalloc(size_t size)
+void *qemu_anon_ram_alloc(size_t size)
{
size_t align = QEMU_VMALLOC_ALIGN;
size_t total = size + align - getpagesize();
size_t offset = QEMU_ALIGN_UP((uintptr_t)ptr, align) - (uintptr_t)ptr;
if (ptr == MAP_FAILED) {
- fprintf(stderr, "Failed to allocate %zu B: %s\n",
- size, strerror(errno));
- abort();
+ return NULL;
}
ptr += offset;
munmap(ptr + size, total - size);
}
- trace_qemu_vmalloc(size, ptr);
+ trace_qemu_anon_ram_alloc(size, ptr);
return ptr;
}
free(ptr);
}
+void qemu_anon_ram_free(void *ptr, size_t size)
+{
+ trace_qemu_anon_ram_free(ptr, size);
+ if (ptr) {
+ munmap(ptr, size);
+ }
+}
+
void qemu_set_block(int fd)
{
int f;
fcntl(fd, F_SETFL, f | O_NONBLOCK);
}
+int socket_set_fast_reuse(int fd)
+{
+ int val = 1, ret;
+
+ ret = setsockopt(fd, SOL_SOCKET, SO_REUSEADDR,
+ (const char *)&val, sizeof(val));
+
+ assert(ret == 0);
+
+ return ret;
+}
+
void qemu_set_cloexec(int fd)
{
int f;
return utimes(path, &tv[0]);
}
+
+char *
+qemu_get_local_state_pathname(const char *relative_pathname)
+{
+ return g_strdup_printf("%s/%s", CONFIG_QEMU_LOCALSTATEDIR,
+ relative_pathname);
+}