[PATCH] Docu update
[fio.git] / init.c
diff --git a/init.c b/init.c
index 5c5a918312db06e3d39a251b08fac8197e746aef..3117d60e5d68e530fde45fed328b7b6bb4e39108 100644 (file)
--- a/init.c
+++ b/init.c
@@ -55,55 +55,6 @@ int write_bw_log = 0;
 int exitall_on_terminate = 0;
 unsigned long long mlock_size = 0;
 
-static int setup_rate(struct thread_data *td)
-{
-       int nr_reads_per_sec;
-
-       if (!td->rate)
-               return 0;
-
-       if (td->rate < td->ratemin) {
-               fprintf(stderr, "min rate larger than nominal rate\n");
-               return -1;
-       }
-
-       nr_reads_per_sec = (td->rate * 1024) / td->min_bs;
-       td->rate_usec_cycle = 1000000 / nr_reads_per_sec;
-       td->rate_pending_usleep = 0;
-       return 0;
-}
-
-static void setup_log(struct io_log **log)
-{
-       struct io_log *l = malloc(sizeof(*l));
-
-       l->nr_samples = 0;
-       l->max_samples = 1024;
-       l->log = malloc(l->max_samples * sizeof(struct io_sample));
-       *log = l;
-}
-
-void finish_log(struct thread_data *td, struct io_log *log, const char *name)
-{
-       char file_name[256];
-       FILE *f;
-       unsigned int i;
-
-       snprintf(file_name, 200, "client%d_%s.log", td->thread_number, name);
-       f = fopen(file_name, "w");
-       if (!f) {
-               perror("fopen log");
-               return;
-       }
-
-       for (i = 0; i < log->nr_samples; i++)
-               fprintf(f, "%lu, %lu, %u\n", log->log[i].time, log->log[i].val, log->log[i].ddir);
-
-       fclose(f);
-       free(log->log);
-       free(log);
-}
-
 static struct thread_data *get_new_job(int global, struct thread_data *parent)
 {
        struct thread_data *td;
@@ -114,51 +65,12 @@ static struct thread_data *get_new_job(int global, struct thread_data *parent)
                return NULL;
 
        td = &threads[thread_number++];
-       if (parent)
-               *td = *parent;
-       else
-               memset(td, 0, sizeof(*td));
+       *td = *parent;
+       td->name[0] = '\0';
 
        td->fd = -1;
        td->thread_number = thread_number;
 
-       td->ddir = parent->ddir;
-       td->ioprio = parent->ioprio;
-       td->sequential = parent->sequential;
-       td->bs = parent->bs;
-       td->min_bs = parent->min_bs;
-       td->max_bs = parent->max_bs;
-       td->odirect = parent->odirect;
-       td->thinktime = parent->thinktime;
-       td->fsync_blocks = parent->fsync_blocks;
-       td->start_delay = parent->start_delay;
-       td->timeout = parent->timeout;
-       td->io_engine = parent->io_engine;
-       td->create_file = parent->create_file;
-       td->overwrite = parent->overwrite;
-       td->invalidate_cache = parent->invalidate_cache;
-       td->file_size = parent->file_size;
-       td->file_offset = parent->file_offset;
-       td->zone_size = parent->zone_size;
-       td->zone_skip = parent->zone_skip;
-       td->rate = parent->rate;
-       td->ratemin = parent->ratemin;
-       td->ratecycle = parent->ratecycle;
-       td->iodepth = parent->iodepth;
-       td->sync_io = parent->sync_io;
-       td->mem_type = parent->mem_type;
-       td->bw_avg_time = parent->bw_avg_time;
-       td->create_serialize = parent->create_serialize;
-       td->create_fsync = parent->create_fsync;
-       td->loops = parent->loops;
-       td->verify = parent->verify;
-       td->stonewall = parent->stonewall;
-       td->numjobs = parent->numjobs;
-       td->use_thread = parent->use_thread;
-       td->do_disk_util = parent->do_disk_util;
-       memcpy(&td->cpumask, &parent->cpumask, sizeof(td->cpumask));
-       strcpy(td->io_engine_name, parent->io_engine_name);
-
        return td;
 }
 
@@ -216,14 +128,17 @@ static int add_job(struct thread_data *td, const char *jobname, int job_add_num)
        }
 
        if (td->filetype == FIO_TYPE_FILE) {
+               char tmp[PATH_MAX];
+
                if (td->directory && td->directory[0] != '\0')
-                       sprintf(td->file_name, "%s/%s.%d", td->directory, jobname, td->jobnum);
+                       sprintf(tmp, "%s/%s.%d", td->directory, jobname, td->jobnum);
                else
-                       sprintf(td->file_name, "%s.%d", jobname, td->jobnum);
+                       sprintf(tmp, "%s.%d", jobname, td->jobnum);
+               td->file_name = strdup(tmp);
        } else
-               strncpy(td->file_name, jobname, sizeof(td->file_name) - 1);
+               td->file_name = strdup(jobname);
 
-       sem_init(&td->mutex, 0, 0);
+       fio_sem_init(&td->mutex, 0);
 
        td->clat_stat[0].min_val = td->clat_stat[1].min_val = ULONG_MAX;
        td->slat_stat[0].min_val = td->slat_stat[1].min_val = ULONG_MAX;
@@ -305,9 +220,9 @@ int init_random_state(struct thread_data *td)
 
        close(fd);
 
-       srand48_r(seeds[0], &td->bsrange_state);
-       srand48_r(seeds[1], &td->verify_state);
-       srand48_r(seeds[2], &td->rwmix_state);
+       os_random_seed(seeds[0], &td->bsrange_state);
+       os_random_seed(seeds[1], &td->verify_state);
+       os_random_seed(seeds[2], &td->rwmix_state);
 
        if (td->sequential)
                return 0;
@@ -321,7 +236,7 @@ int init_random_state(struct thread_data *td)
        td->num_maps = num_maps;
        memset(td->file_map, 0, num_maps * sizeof(long));
 
-       srand48_r(seeds[3], &td->random_state);
+       os_random_seed(seeds[3], &td->random_state);
        return 0;
 }
 
@@ -578,7 +493,7 @@ static int str_rw_cb(struct thread_data *td, char *mem)
                return 0;
        }
 
-       fprintf(stderr, "bad data direction: %s\n", mem);
+       fprintf(stderr, "fio: data direction: read, write, randread, randwrite, rw, randrw\n");
        return 1;
 }
 
@@ -595,7 +510,7 @@ static int str_verify_cb(struct thread_data *td, char *mem)
                return 0;
        }
 
-       fprintf(stderr, "bad verify type: %s\n", mem);
+       fprintf(stderr, "fio: verify types: md5, crc32\n");
        return 1;
 }
 
@@ -612,7 +527,7 @@ static int str_mem_cb(struct thread_data *td, char *mem)
                return 0;
        }
 
-       fprintf(stderr, "bad mem type: %s\n", mem);
+       fprintf(stderr, "fio: mem type: malloc, shm, mmap\n");
        return 1;
 }
 
@@ -645,10 +560,13 @@ static int str_ioengine_cb(struct thread_data *td, char *str)
                return 0;
        }
 
-       fprintf(stderr, "bad ioengine type: %s\n", str);
+       fprintf(stderr, "fio: ioengine: { linuxaio, aio, libaio }, posixaio, sync, mmap, sgio, splice\n");
        return 1;
 }
 
+/*
+ * This is our [ini] type file parser.
+ */
 int parse_jobs_ini(char *file)
 {
        unsigned int prioclass, prio, cpu, global, il;
@@ -659,6 +577,7 @@ int parse_jobs_ini(char *file)
        fpos_t off;
        FILE *f;
        char *p;
+       int ret = 0;
 
        f = fopen(file, "r");
        if (!f) {
@@ -671,6 +590,8 @@ int parse_jobs_ini(char *file)
        tmpbuf = malloc(4096);
 
        while ((p = fgets(string, 4096, f)) != NULL) {
+               if (ret)
+                       break;
                if (is_empty_or_comment(p))
                        continue;
                if (sscanf(p, "[%s]", name) != 1)
@@ -681,8 +602,10 @@ int parse_jobs_ini(char *file)
                name[strlen(name) - 1] = '\0';
 
                td = get_new_job(global, &def_thread);
-               if (!td)
-                       return 1;
+               if (!td) {
+                       ret = 1;
+                       break;
+               }
 
                fgetpos(f, &off);
                while ((p = fgets(string, 4096, f)) != NULL) {
@@ -696,7 +619,8 @@ int parse_jobs_ini(char *file)
                        if (!check_int(p, "prio", &prio)) {
 #ifndef FIO_HAVE_IOPRIO
                                fprintf(stderr, "io priorities not available\n");
-                               return 1;
+                               ret = 1;
+                               break;
 #endif
                                td->ioprio |= prio;
                                fgetpos(f, &off);
@@ -705,13 +629,16 @@ int parse_jobs_ini(char *file)
                        if (!check_int(p, "prioclass", &prioclass)) {
 #ifndef FIO_HAVE_IOPRIO
                                fprintf(stderr, "io priorities not available\n");
-                               return 1;
-#endif
+                               ret = 1;
+                               break;
+#else
                                td->ioprio |= prioclass << IOPRIO_CLASS_SHIFT;
                                fgetpos(f, &off);
                                continue;
+#endif
                        }
-                       if (!check_int(p, "direct", &td->odirect)) {
+                       if (!check_int(p, "direct", &il)) {
+                               td->odirect = il;
                                fgetpos(f, &off);
                                continue;
                        }
@@ -734,7 +661,8 @@ int parse_jobs_ini(char *file)
                        if (!check_int(p, "cpumask", &cpu)) {
 #ifndef FIO_HAVE_CPU_AFFINITY
                                fprintf(stderr, "cpu affinity not available\n");
-                               return 1;
+                               ret = 1;
+                               break;
 #endif
                                fill_cpu_mask(td->cpumask, cpu);
                                fgetpos(f, &off);
@@ -753,7 +681,8 @@ int parse_jobs_ini(char *file)
                                fgetpos(f, &off);
                                continue;
                        }
-                       if (!check_int(p, "invalidate",&td->invalidate_cache)) {
+                       if (!check_int(p, "invalidate", &il)) {
+                               td->invalidate_cache = il;
                                fgetpos(f, &off);
                                continue;
                        }
@@ -761,7 +690,8 @@ int parse_jobs_ini(char *file)
                                fgetpos(f, &off);
                                continue;
                        }
-                       if (!check_int(p, "sync", &td->sync_io)) {
+                       if (!check_int(p, "sync", &il)) {
+                               td->sync_io = il;
                                fgetpos(f, &off);
                                continue;
                        }
@@ -769,15 +699,18 @@ int parse_jobs_ini(char *file)
                                fgetpos(f, &off);
                                continue;
                        }
-                       if (!check_int(p, "create_serialize", &td->create_serialize)) {
+                       if (!check_int(p, "create_serialize", &il)) {
+                               td->create_serialize = il;
                                fgetpos(f, &off);
                                continue;
                        }
-                       if (!check_int(p, "create_fsync", &td->create_fsync)) {
+                       if (!check_int(p, "create_fsync", &il)) {
+                               td->create_fsync = il;
                                fgetpos(f, &off);
                                continue;
                        }
-                       if (!check_int(p, "end_fsync", &td->end_fsync)) {
+                       if (!check_int(p, "end_fsync", &il)) {
+                               td->end_fsync = il;
                                fgetpos(f, &off);
                                continue;
                        }
@@ -789,7 +722,8 @@ int parse_jobs_ini(char *file)
                                fgetpos(f, &off);
                                continue;
                        }
-                       if (!check_int(p, "overwrite", &td->overwrite)) {
+                       if (!check_int(p, "overwrite", &il)) {
+                               td->overwrite = il;
                                fgetpos(f, &off);
                                continue;
                        }
@@ -898,16 +832,22 @@ int parse_jobs_ini(char *file)
                                continue;
                        }
                        if (!check_strstore(p, "iolog", tmpbuf)) {
+                               if (td->write_iolog) {
+                                       fprintf(stderr, "fio: read iolog overrides given write_iolog\n");
+                                       free(td->iolog_file);
+                                       td->write_iolog = 0;
+                               }
                                td->iolog_file = strdup(tmpbuf);
                                td->read_iolog = 1;
-                               td->write_iolog = 0;
                                fgetpos(f, &off);
                                continue;
                        }
-                       if (!td->read_iolog &&
-                           !check_strstore(p, "write_iolog", tmpbuf)) {
-                               td->iolog_file = strdup(tmpbuf);
-                               td->write_iolog = 1;
+                       if (!check_strstore(p, "write_iolog", tmpbuf)) {
+                               if (!td->read_iolog) {
+                                       td->iolog_file = strdup(tmpbuf);
+                                       td->write_iolog = 1;
+                               } else
+                                       fprintf(stderr, "fio: read iolog overrides given write_iolog\n");
                                fgetpos(f, &off);
                                continue;
                        }
@@ -922,25 +862,39 @@ int parse_jobs_ini(char *file)
                                continue;
                        }
                        if (!check_strstore(p, "ioscheduler", tmpbuf)) {
+#ifndef FIO_HAVE_IOSCHED_SWITCH
+                               fprintf(stderr, "io scheduler switching not available\n");
+                               ret = 1;
+                               break;
+#else
                                td->ioscheduler = strdup(tmpbuf);
                                fgetpos(f, &off);
                                continue;
+#endif
                        }
 
+                       /*
+                        * Don't break here, continue parsing options so we
+                        * dump all the bad ones. Makes trial/error fixups
+                        * easier on the user.
+                        */
                        printf("Client%d: bad option %s\n",td->thread_number,p);
-                       return 1;
+                       ret = 1;
                }
-               fsetpos(f, &off);
 
-               if (add_job(td, name, 0))
-                       return 1;
+               if (!ret) {
+                       fsetpos(f, &off);
+                       ret = add_job(td, name, 0);
+               }
+               if (ret)
+                       break;
        }
 
        free(string);
        free(name);
        free(tmpbuf);
        fclose(f);
-       return 0;
+       return ret;
 }
 
 static int fill_def_thread(void)
@@ -1059,7 +1013,7 @@ static void free_shm(void)
        struct shmid_ds sbuf;
 
        if (threads) {
-               shmdt(threads);
+               shmdt((void *) threads);
                threads = NULL;
                shmctl(shm_id, IPC_RMID, &sbuf);
        }
@@ -1113,10 +1067,8 @@ int parse_options(int argc, char *argv[])
                return 1;
        }
 
-       if (parse_jobs_ini(ini_file)) {
-               usage(argv[0]);
+       if (parse_jobs_ini(ini_file))
                return 1;
-       }
 
        return 0;
 }