td->shm_id = shmget(IPC_PRIVATE, td->orig_buffer_size, flags);
if (td->shm_id < 0) {
- td_verror(td, errno);
+ td_verror(td, errno, "shmget");
perror("shmget");
return 1;
}
td->orig_buffer = shmat(td->shm_id, NULL, 0);
if (td->orig_buffer == (void *) -1) {
- td_verror(td, errno);
+ td_verror(td, errno, "shmat");
perror("shmat");
td->orig_buffer = NULL;
return 1;
}
- } else if (td->mem_type == MEM_MMAP) {
- td->orig_buffer = mmap(NULL, td->orig_buffer_size, PROT_READ | PROT_WRITE, MAP_PRIVATE | OS_MAP_ANON, 0, 0);
+ } else if (td->mem_type == MEM_MMAP || td->mem_type == MEM_MMAPHUGE) {
+ int flags = MAP_PRIVATE;
+
+ td->mmapfd = 0;
+
+ if (td->mmapfile) {
+ td->mmapfd = open(td->mmapfile, O_RDWR|O_CREAT, 0644);
+
+ if (td->mmapfd < 0) {
+ td_verror(td, errno, "open");
+ perror("open mmap file");
+ td->orig_buffer = NULL;
+ return 1;
+ }
+ } else
+ flags |= OS_MAP_ANON;
+
+ td->orig_buffer = mmap(NULL, td->orig_buffer_size, PROT_READ | PROT_WRITE, flags, td->mmapfd, 0);
if (td->orig_buffer == MAP_FAILED) {
- td_verror(td, errno);
+ td_verror(td, errno, "mmap");
perror("mmap");
td->orig_buffer = NULL;
+ if (td->mmapfd) {
+ close(td->mmapfd);
+ unlink(td->mmapfile);
+ }
+
return 1;
}
}
shmdt(td->orig_buffer);
shmctl(td->shm_id, IPC_RMID, &sbuf);
- } else if (td->mem_type == MEM_MMAP)
+ } else if (td->mem_type == MEM_MMAP || td->mem_type == MEM_MMAPHUGE) {
munmap(td->orig_buffer, td->orig_buffer_size);
- else
+ if (td->mmapfile) {
+ close(td->mmapfd);
+ unlink(td->mmapfile);
+ free(td->mmapfile);
+ }
+ } else
log_err("Bad memory type %u\n", td->mem_type);
td->orig_buffer = NULL;