ioengines.c revision b3605062146bce0136918763bb8eb584478ae042
1ebac4655dd3624f3296ff83be48e0cdc02852f1Jens Axboe/* 2ebac4655dd3624f3296ff83be48e0cdc02852f1Jens Axboe * The io parts of the fio tool, includes workers for sync and mmap'ed 3ebac4655dd3624f3296ff83be48e0cdc02852f1Jens Axboe * io, as well as both posix and linux libaio support. 4ebac4655dd3624f3296ff83be48e0cdc02852f1Jens Axboe * 5ebac4655dd3624f3296ff83be48e0cdc02852f1Jens Axboe * sync io is implemented on top of aio. 6ebac4655dd3624f3296ff83be48e0cdc02852f1Jens Axboe * 7ebac4655dd3624f3296ff83be48e0cdc02852f1Jens Axboe * This is not really specific to fio, if the get_io_u/put_io_u and 8ebac4655dd3624f3296ff83be48e0cdc02852f1Jens Axboe * structures was pulled into this as well it would be a perfectly 9ebac4655dd3624f3296ff83be48e0cdc02852f1Jens Axboe * generic io engine that could be used for other projects. 10ebac4655dd3624f3296ff83be48e0cdc02852f1Jens Axboe * 11ebac4655dd3624f3296ff83be48e0cdc02852f1Jens Axboe */ 12ebac4655dd3624f3296ff83be48e0cdc02852f1Jens Axboe#include <stdio.h> 13ebac4655dd3624f3296ff83be48e0cdc02852f1Jens Axboe#include <stdlib.h> 14ebac4655dd3624f3296ff83be48e0cdc02852f1Jens Axboe#include <unistd.h> 155c4e1dbc4ec6ee963220c5f4e64a04cd6130dc81Jens Axboe#include <string.h> 162866c82d598e30604d8a92723c664ee6ced90fb0Jens Axboe#include <dlfcn.h> 170c6e75175bcaf8d05bfa88aa8caa584fbb848b74Jens Axboe#include <assert.h> 188c16d840377c1e6fb79f479ee60590a2da5b52eeJens Axboe 19ebac4655dd3624f3296ff83be48e0cdc02852f1Jens Axboe#include "fio.h" 20ebac4655dd3624f3296ff83be48e0cdc02852f1Jens Axboe#include "os.h" 21ebac4655dd3624f3296ff83be48e0cdc02852f1Jens Axboe 225f350952eff89948bfbf1eb6ac4d3d08a9109581Jens Axboestatic LIST_HEAD(engine_list); 235f350952eff89948bfbf1eb6ac4d3d08a9109581Jens Axboe 248c16d840377c1e6fb79f479ee60590a2da5b52eeJens Axboestatic int check_engine_ops(struct ioengine_ops *ops) 258c16d840377c1e6fb79f479ee60590a2da5b52eeJens Axboe{ 265f350952eff89948bfbf1eb6ac4d3d08a9109581Jens Axboe if (ops->version != FIO_IOOPS_VERSION) { 275f350952eff89948bfbf1eb6ac4d3d08a9109581Jens Axboe log_err("bad ioops version %d (want %d)\n", ops->version, FIO_IOOPS_VERSION); 285f350952eff89948bfbf1eb6ac4d3d08a9109581Jens Axboe return 1; 295f350952eff89948bfbf1eb6ac4d3d08a9109581Jens Axboe } 305f350952eff89948bfbf1eb6ac4d3d08a9109581Jens Axboe 3136167d82e5f49dee91c6d2cd426068edee90e36fJens Axboe if (!ops->queue) { 3236167d82e5f49dee91c6d2cd426068edee90e36fJens Axboe log_err("%s: no queue handler\n", ops->name); 3336167d82e5f49dee91c6d2cd426068edee90e36fJens Axboe return 1; 3436167d82e5f49dee91c6d2cd426068edee90e36fJens Axboe } 3536167d82e5f49dee91c6d2cd426068edee90e36fJens Axboe 3636167d82e5f49dee91c6d2cd426068edee90e36fJens Axboe /* 3736167d82e5f49dee91c6d2cd426068edee90e36fJens Axboe * sync engines only need a ->queue() 3836167d82e5f49dee91c6d2cd426068edee90e36fJens Axboe */ 3936167d82e5f49dee91c6d2cd426068edee90e36fJens Axboe if (ops->flags & FIO_SYNCIO) 4036167d82e5f49dee91c6d2cd426068edee90e36fJens Axboe return 0; 4136167d82e5f49dee91c6d2cd426068edee90e36fJens Axboe 428c16d840377c1e6fb79f479ee60590a2da5b52eeJens Axboe if (!ops->event) { 4336167d82e5f49dee91c6d2cd426068edee90e36fJens Axboe log_err("%s: no event handler\n", ops->name); 448c16d840377c1e6fb79f479ee60590a2da5b52eeJens Axboe return 1; 458c16d840377c1e6fb79f479ee60590a2da5b52eeJens Axboe } 468c16d840377c1e6fb79f479ee60590a2da5b52eeJens Axboe if (!ops->getevents) { 4736167d82e5f49dee91c6d2cd426068edee90e36fJens Axboe log_err("%s: no getevents handler\n", ops->name); 488c16d840377c1e6fb79f479ee60590a2da5b52eeJens Axboe return 1; 498c16d840377c1e6fb79f479ee60590a2da5b52eeJens Axboe } 508c16d840377c1e6fb79f479ee60590a2da5b52eeJens Axboe if (!ops->queue) { 5136167d82e5f49dee91c6d2cd426068edee90e36fJens Axboe log_err("%s: no queue handler\n", ops->name); 528c16d840377c1e6fb79f479ee60590a2da5b52eeJens Axboe return 1; 538c16d840377c1e6fb79f479ee60590a2da5b52eeJens Axboe } 548c16d840377c1e6fb79f479ee60590a2da5b52eeJens Axboe 558c16d840377c1e6fb79f479ee60590a2da5b52eeJens Axboe return 0; 568c16d840377c1e6fb79f479ee60590a2da5b52eeJens Axboe} 578c16d840377c1e6fb79f479ee60590a2da5b52eeJens Axboe 585f350952eff89948bfbf1eb6ac4d3d08a9109581Jens Axboevoid unregister_ioengine(struct ioengine_ops *ops) 59ebac4655dd3624f3296ff83be48e0cdc02852f1Jens Axboe{ 605f350952eff89948bfbf1eb6ac4d3d08a9109581Jens Axboe list_del(&ops->list); 615f350952eff89948bfbf1eb6ac4d3d08a9109581Jens Axboe INIT_LIST_HEAD(&ops->list); 625f350952eff89948bfbf1eb6ac4d3d08a9109581Jens Axboe} 635f350952eff89948bfbf1eb6ac4d3d08a9109581Jens Axboe 64b2fdda43cf0699f60e711429c778ff1685e30062Jens Axboevoid register_ioengine(struct ioengine_ops *ops) 655f350952eff89948bfbf1eb6ac4d3d08a9109581Jens Axboe{ 665f350952eff89948bfbf1eb6ac4d3d08a9109581Jens Axboe INIT_LIST_HEAD(&ops->list); 675f350952eff89948bfbf1eb6ac4d3d08a9109581Jens Axboe list_add_tail(&ops->list, &engine_list); 685f350952eff89948bfbf1eb6ac4d3d08a9109581Jens Axboe} 695f350952eff89948bfbf1eb6ac4d3d08a9109581Jens Axboe 705f350952eff89948bfbf1eb6ac4d3d08a9109581Jens Axboestatic struct ioengine_ops *find_ioengine(const char *name) 715f350952eff89948bfbf1eb6ac4d3d08a9109581Jens Axboe{ 725f350952eff89948bfbf1eb6ac4d3d08a9109581Jens Axboe struct ioengine_ops *ops; 735f350952eff89948bfbf1eb6ac4d3d08a9109581Jens Axboe struct list_head *entry; 74ebac4655dd3624f3296ff83be48e0cdc02852f1Jens Axboe 755f350952eff89948bfbf1eb6ac4d3d08a9109581Jens Axboe list_for_each(entry, &engine_list) { 765f350952eff89948bfbf1eb6ac4d3d08a9109581Jens Axboe ops = list_entry(entry, struct ioengine_ops, list); 77bc5b77a8c46aabea554c4a2c8cca37f27f97969aJens Axboe if (!strcmp(name, ops->name)) 785f350952eff89948bfbf1eb6ac4d3d08a9109581Jens Axboe return ops; 795f350952eff89948bfbf1eb6ac4d3d08a9109581Jens Axboe } 805f350952eff89948bfbf1eb6ac4d3d08a9109581Jens Axboe 815f350952eff89948bfbf1eb6ac4d3d08a9109581Jens Axboe return NULL; 825f350952eff89948bfbf1eb6ac4d3d08a9109581Jens Axboe} 835f350952eff89948bfbf1eb6ac4d3d08a9109581Jens Axboe 845f350952eff89948bfbf1eb6ac4d3d08a9109581Jens Axboestatic struct ioengine_ops *dlopen_ioengine(struct thread_data *td, 855f350952eff89948bfbf1eb6ac4d3d08a9109581Jens Axboe const char *engine_lib) 865f350952eff89948bfbf1eb6ac4d3d08a9109581Jens Axboe{ 875f350952eff89948bfbf1eb6ac4d3d08a9109581Jens Axboe struct ioengine_ops *ops; 885f350952eff89948bfbf1eb6ac4d3d08a9109581Jens Axboe void *dlhandle; 895f350952eff89948bfbf1eb6ac4d3d08a9109581Jens Axboe 902866c82d598e30604d8a92723c664ee6ced90fb0Jens Axboe dlerror(); 912866c82d598e30604d8a92723c664ee6ced90fb0Jens Axboe dlhandle = dlopen(engine_lib, RTLD_LAZY); 92d4dbaaa821b9d3dd34ca002d1976d4f924a07a47Jens Axboe if (!dlhandle) { 93e1161c325f7866bae879e686d1c673ca32ab09aeJens Axboe td_vmsg(td, -1, dlerror(), "dlopen"); 94d4dbaaa821b9d3dd34ca002d1976d4f924a07a47Jens Axboe return NULL; 95d4dbaaa821b9d3dd34ca002d1976d4f924a07a47Jens Axboe } 968756e4d421722eaeb089067aeaaf317d05d53a57Jens Axboe 97da51c0505c753f64ad5f65808377b8f67b445828Jens Axboe /* 98da51c0505c753f64ad5f65808377b8f67b445828Jens Axboe * Unlike the included modules, external engines should have a 99da51c0505c753f64ad5f65808377b8f67b445828Jens Axboe * non-static ioengine structure that we can reference. 100da51c0505c753f64ad5f65808377b8f67b445828Jens Axboe */ 1012866c82d598e30604d8a92723c664ee6ced90fb0Jens Axboe ops = dlsym(dlhandle, "ioengine"); 102d4dbaaa821b9d3dd34ca002d1976d4f924a07a47Jens Axboe if (!ops) { 103e1161c325f7866bae879e686d1c673ca32ab09aeJens Axboe td_vmsg(td, -1, dlerror(), "dlsym"); 104d4dbaaa821b9d3dd34ca002d1976d4f924a07a47Jens Axboe dlclose(dlhandle); 105d4dbaaa821b9d3dd34ca002d1976d4f924a07a47Jens Axboe return NULL; 106d4dbaaa821b9d3dd34ca002d1976d4f924a07a47Jens Axboe } 1078756e4d421722eaeb089067aeaaf317d05d53a57Jens Axboe 1085f350952eff89948bfbf1eb6ac4d3d08a9109581Jens Axboe ops->dlhandle = dlhandle; 1095f350952eff89948bfbf1eb6ac4d3d08a9109581Jens Axboe return ops; 1105f350952eff89948bfbf1eb6ac4d3d08a9109581Jens Axboe} 1115f350952eff89948bfbf1eb6ac4d3d08a9109581Jens Axboe 1125f350952eff89948bfbf1eb6ac4d3d08a9109581Jens Axboestruct ioengine_ops *load_ioengine(struct thread_data *td, const char *name) 1135f350952eff89948bfbf1eb6ac4d3d08a9109581Jens Axboe{ 1145f350952eff89948bfbf1eb6ac4d3d08a9109581Jens Axboe struct ioengine_ops *ops, *ret; 1155f350952eff89948bfbf1eb6ac4d3d08a9109581Jens Axboe char engine[16]; 1165f350952eff89948bfbf1eb6ac4d3d08a9109581Jens Axboe 1175f350952eff89948bfbf1eb6ac4d3d08a9109581Jens Axboe strncpy(engine, name, sizeof(engine) - 1); 1185f350952eff89948bfbf1eb6ac4d3d08a9109581Jens Axboe 1195f350952eff89948bfbf1eb6ac4d3d08a9109581Jens Axboe /* 1205f350952eff89948bfbf1eb6ac4d3d08a9109581Jens Axboe * linux libaio has alias names, so convert to what we want 1215f350952eff89948bfbf1eb6ac4d3d08a9109581Jens Axboe */ 1225f350952eff89948bfbf1eb6ac4d3d08a9109581Jens Axboe if (!strncmp(engine, "linuxaio", 8) || !strncmp(engine, "aio", 3)) 1235f350952eff89948bfbf1eb6ac4d3d08a9109581Jens Axboe strcpy(engine, "libaio"); 1245f350952eff89948bfbf1eb6ac4d3d08a9109581Jens Axboe 1255f350952eff89948bfbf1eb6ac4d3d08a9109581Jens Axboe ops = find_ioengine(engine); 1265f350952eff89948bfbf1eb6ac4d3d08a9109581Jens Axboe if (!ops) 1275f350952eff89948bfbf1eb6ac4d3d08a9109581Jens Axboe ops = dlopen_ioengine(td, name); 1285f350952eff89948bfbf1eb6ac4d3d08a9109581Jens Axboe 1295f350952eff89948bfbf1eb6ac4d3d08a9109581Jens Axboe if (!ops) { 1305f350952eff89948bfbf1eb6ac4d3d08a9109581Jens Axboe log_err("fio: engine %s not loadable\n", name); 131b902ceb53977a12062c615ab529ca0c3422e3cffJens Axboe return NULL; 132b902ceb53977a12062c615ab529ca0c3422e3cffJens Axboe } 133b902ceb53977a12062c615ab529ca0c3422e3cffJens Axboe 1348c16d840377c1e6fb79f479ee60590a2da5b52eeJens Axboe /* 1358c16d840377c1e6fb79f479ee60590a2da5b52eeJens Axboe * Check that the required methods are there. 1368c16d840377c1e6fb79f479ee60590a2da5b52eeJens Axboe */ 1375f350952eff89948bfbf1eb6ac4d3d08a9109581Jens Axboe if (check_engine_ops(ops)) 1388c16d840377c1e6fb79f479ee60590a2da5b52eeJens Axboe return NULL; 1398c16d840377c1e6fb79f479ee60590a2da5b52eeJens Axboe 14084585003d025a38b91749cb0d68f6b5653d1f1a3Jens Axboe ret = malloc(sizeof(*ret)); 14184585003d025a38b91749cb0d68f6b5653d1f1a3Jens Axboe memcpy(ret, ops, sizeof(*ret)); 14284585003d025a38b91749cb0d68f6b5653d1f1a3Jens Axboe ret->data = NULL; 14384585003d025a38b91749cb0d68f6b5653d1f1a3Jens Axboe 14484585003d025a38b91749cb0d68f6b5653d1f1a3Jens Axboe return ret; 1458756e4d421722eaeb089067aeaaf317d05d53a57Jens Axboe} 1468756e4d421722eaeb089067aeaaf317d05d53a57Jens Axboe 1472866c82d598e30604d8a92723c664ee6ced90fb0Jens Axboevoid close_ioengine(struct thread_data *td) 1488756e4d421722eaeb089067aeaaf317d05d53a57Jens Axboe{ 1492866c82d598e30604d8a92723c664ee6ced90fb0Jens Axboe if (td->io_ops->cleanup) 1502866c82d598e30604d8a92723c664ee6ced90fb0Jens Axboe td->io_ops->cleanup(td); 151b990b5c06801d6d25e3fcc5415efbbe7bb23341eJens Axboe 1525f350952eff89948bfbf1eb6ac4d3d08a9109581Jens Axboe if (td->io_ops->dlhandle) 1535f350952eff89948bfbf1eb6ac4d3d08a9109581Jens Axboe dlclose(td->io_ops->dlhandle); 1545f350952eff89948bfbf1eb6ac4d3d08a9109581Jens Axboe 15584585003d025a38b91749cb0d68f6b5653d1f1a3Jens Axboe free(td->io_ops); 15684585003d025a38b91749cb0d68f6b5653d1f1a3Jens Axboe td->io_ops = NULL; 157b990b5c06801d6d25e3fcc5415efbbe7bb23341eJens Axboe} 15810ba535a5cbb95b5576e33a6f8af093a6ca3bfd7Jens Axboe 15910ba535a5cbb95b5576e33a6f8af093a6ca3bfd7Jens Axboeint td_io_prep(struct thread_data *td, struct io_u *io_u) 16010ba535a5cbb95b5576e33a6f8af093a6ca3bfd7Jens Axboe{ 16136167d82e5f49dee91c6d2cd426068edee90e36fJens Axboe if (td->io_ops->prep) 16236167d82e5f49dee91c6d2cd426068edee90e36fJens Axboe return td->io_ops->prep(td, io_u); 16310ba535a5cbb95b5576e33a6f8af093a6ca3bfd7Jens Axboe 16410ba535a5cbb95b5576e33a6f8af093a6ca3bfd7Jens Axboe return 0; 16510ba535a5cbb95b5576e33a6f8af093a6ca3bfd7Jens Axboe} 16610ba535a5cbb95b5576e33a6f8af093a6ca3bfd7Jens Axboe 16710ba535a5cbb95b5576e33a6f8af093a6ca3bfd7Jens Axboeint td_io_getevents(struct thread_data *td, int min, int max, 16810ba535a5cbb95b5576e33a6f8af093a6ca3bfd7Jens Axboe struct timespec *t) 16910ba535a5cbb95b5576e33a6f8af093a6ca3bfd7Jens Axboe{ 170face81b280ab94ba5d975739578779157c8b54ceJens Axboe if (min > 0 && td->io_ops->commit) { 171face81b280ab94ba5d975739578779157c8b54ceJens Axboe int r = td->io_ops->commit(td); 172face81b280ab94ba5d975739578779157c8b54ceJens Axboe 173face81b280ab94ba5d975739578779157c8b54ceJens Axboe if (r < 0) 174face81b280ab94ba5d975739578779157c8b54ceJens Axboe return r; 175face81b280ab94ba5d975739578779157c8b54ceJens Axboe } 17636167d82e5f49dee91c6d2cd426068edee90e36fJens Axboe if (td->io_ops->getevents) 17736167d82e5f49dee91c6d2cd426068edee90e36fJens Axboe return td->io_ops->getevents(td, min, max, t); 17836167d82e5f49dee91c6d2cd426068edee90e36fJens Axboe 17936167d82e5f49dee91c6d2cd426068edee90e36fJens Axboe return 0; 18010ba535a5cbb95b5576e33a6f8af093a6ca3bfd7Jens Axboe} 18110ba535a5cbb95b5576e33a6f8af093a6ca3bfd7Jens Axboe 18210ba535a5cbb95b5576e33a6f8af093a6ca3bfd7Jens Axboeint td_io_queue(struct thread_data *td, struct io_u *io_u) 18310ba535a5cbb95b5576e33a6f8af093a6ca3bfd7Jens Axboe{ 1847e77dd026d85253936aef432ba8f3e89b96b805cJens Axboe int ret; 1857e77dd026d85253936aef432ba8f3e89b96b805cJens Axboe 1860c6e75175bcaf8d05bfa88aa8caa584fbb848b74Jens Axboe assert((io_u->flags & IO_U_F_FLIGHT) == 0); 1870c6e75175bcaf8d05bfa88aa8caa584fbb848b74Jens Axboe io_u->flags |= IO_U_F_FLIGHT; 1880c6e75175bcaf8d05bfa88aa8caa584fbb848b74Jens Axboe 189117868024939609aebd94fff5afacfd29b2f9a6fJens Axboe io_u->error = 0; 190117868024939609aebd94fff5afacfd29b2f9a6fJens Axboe io_u->resid = 0; 191117868024939609aebd94fff5afacfd29b2f9a6fJens Axboe 192433afcb4fe81e775c15af9d39a6f4db8a53d693aJens Axboe if (td->io_ops->flags & FIO_SYNCIO) { 1935aeb77df5d75d1065b339c47afbd882a3c04702eJens Axboe fio_gettime(&io_u->issue_time, NULL); 19410ba535a5cbb95b5576e33a6f8af093a6ca3bfd7Jens Axboe 195433afcb4fe81e775c15af9d39a6f4db8a53d693aJens Axboe /* 196433afcb4fe81e775c15af9d39a6f4db8a53d693aJens Axboe * for a sync engine, set the timeout upfront 197433afcb4fe81e775c15af9d39a6f4db8a53d693aJens Axboe */ 198433afcb4fe81e775c15af9d39a6f4db8a53d693aJens Axboe if (mtime_since(&td->timeout_end, &io_u->issue_time) < IO_U_TIMEOUT) 199433afcb4fe81e775c15af9d39a6f4db8a53d693aJens Axboe io_u_set_timeout(td); 200433afcb4fe81e775c15af9d39a6f4db8a53d693aJens Axboe } 201433afcb4fe81e775c15af9d39a6f4db8a53d693aJens Axboe 202755200a326a33e5e19b16dfd5e013dd98bcf1916Jens Axboe if (io_u->ddir != DDIR_SYNC) 203755200a326a33e5e19b16dfd5e013dd98bcf1916Jens Axboe td->io_issues[io_u->ddir]++; 204755200a326a33e5e19b16dfd5e013dd98bcf1916Jens Axboe 205b3605062146bce0136918763bb8eb584478ae042Jens Axboe io_u_mark_depth(td, io_u); 206b3605062146bce0136918763bb8eb584478ae042Jens Axboe 2077e77dd026d85253936aef432ba8f3e89b96b805cJens Axboe ret = td->io_ops->queue(td, io_u); 2085aeb77df5d75d1065b339c47afbd882a3c04702eJens Axboe 209eb7c8ae27bc301b77490b3586dd5ccab7c95880aJens Axboe if (ret == FIO_Q_QUEUED) { 210eb7c8ae27bc301b77490b3586dd5ccab7c95880aJens Axboe int r; 211eb7c8ae27bc301b77490b3586dd5ccab7c95880aJens Axboe 212cb5ab5121ac4fa62e0ca2612b359f19bfdd30f29Jens Axboe td->io_u_queued++; 213eb7c8ae27bc301b77490b3586dd5ccab7c95880aJens Axboe if (td->io_u_queued > td->iodepth_batch) { 214eb7c8ae27bc301b77490b3586dd5ccab7c95880aJens Axboe r = td_io_commit(td); 215eb7c8ae27bc301b77490b3586dd5ccab7c95880aJens Axboe if (r < 0) 216eb7c8ae27bc301b77490b3586dd5ccab7c95880aJens Axboe return r; 217eb7c8ae27bc301b77490b3586dd5ccab7c95880aJens Axboe } 218eb7c8ae27bc301b77490b3586dd5ccab7c95880aJens Axboe } 219cb5ab5121ac4fa62e0ca2612b359f19bfdd30f29Jens Axboe 220433afcb4fe81e775c15af9d39a6f4db8a53d693aJens Axboe if ((td->io_ops->flags & FIO_SYNCIO) == 0) { 2215aeb77df5d75d1065b339c47afbd882a3c04702eJens Axboe fio_gettime(&io_u->issue_time, NULL); 2225aeb77df5d75d1065b339c47afbd882a3c04702eJens Axboe 223433afcb4fe81e775c15af9d39a6f4db8a53d693aJens Axboe /* 224433afcb4fe81e775c15af9d39a6f4db8a53d693aJens Axboe * async engine, set the timeout here 225433afcb4fe81e775c15af9d39a6f4db8a53d693aJens Axboe */ 226433afcb4fe81e775c15af9d39a6f4db8a53d693aJens Axboe if (ret == FIO_Q_QUEUED && 227433afcb4fe81e775c15af9d39a6f4db8a53d693aJens Axboe mtime_since(&td->timeout_end, &io_u->issue_time) < IO_U_TIMEOUT) 228433afcb4fe81e775c15af9d39a6f4db8a53d693aJens Axboe io_u_set_timeout(td); 229433afcb4fe81e775c15af9d39a6f4db8a53d693aJens Axboe } 230433afcb4fe81e775c15af9d39a6f4db8a53d693aJens Axboe 2317e77dd026d85253936aef432ba8f3e89b96b805cJens Axboe return ret; 23210ba535a5cbb95b5576e33a6f8af093a6ca3bfd7Jens Axboe} 2338c16d840377c1e6fb79f479ee60590a2da5b52eeJens Axboe 2348c16d840377c1e6fb79f479ee60590a2da5b52eeJens Axboeint td_io_init(struct thread_data *td) 2358c16d840377c1e6fb79f479ee60590a2da5b52eeJens Axboe{ 2368c16d840377c1e6fb79f479ee60590a2da5b52eeJens Axboe if (td->io_ops->init) 2378c16d840377c1e6fb79f479ee60590a2da5b52eeJens Axboe return td->io_ops->init(td); 2388c16d840377c1e6fb79f479ee60590a2da5b52eeJens Axboe 2398c16d840377c1e6fb79f479ee60590a2da5b52eeJens Axboe return 0; 2408c16d840377c1e6fb79f479ee60590a2da5b52eeJens Axboe} 241755200a326a33e5e19b16dfd5e013dd98bcf1916Jens Axboe 242755200a326a33e5e19b16dfd5e013dd98bcf1916Jens Axboeint td_io_commit(struct thread_data *td) 243755200a326a33e5e19b16dfd5e013dd98bcf1916Jens Axboe{ 244e1161c325f7866bae879e686d1c673ca32ab09aeJens Axboe if (!td->cur_depth) 245e1161c325f7866bae879e686d1c673ca32ab09aeJens Axboe return 0; 246cb5ab5121ac4fa62e0ca2612b359f19bfdd30f29Jens Axboe 247cb5ab5121ac4fa62e0ca2612b359f19bfdd30f29Jens Axboe td->io_u_queued = 0; 248755200a326a33e5e19b16dfd5e013dd98bcf1916Jens Axboe if (td->io_ops->commit) 249755200a326a33e5e19b16dfd5e013dd98bcf1916Jens Axboe return td->io_ops->commit(td); 250755200a326a33e5e19b16dfd5e013dd98bcf1916Jens Axboe 251755200a326a33e5e19b16dfd5e013dd98bcf1916Jens Axboe return 0; 252755200a326a33e5e19b16dfd5e013dd98bcf1916Jens Axboe} 253b5af82930ccfd7dda6a1b11794efb452eb76d8dcJens Axboe 254b5af82930ccfd7dda6a1b11794efb452eb76d8dcJens Axboeint td_io_open_file(struct thread_data *td, struct fio_file *f) 255b5af82930ccfd7dda6a1b11794efb452eb76d8dcJens Axboe{ 256a978ba684deb758465a0ccb18a008797636e8054Jens Axboe if (td->io_ops->open_file(td, f)) 257a978ba684deb758465a0ccb18a008797636e8054Jens Axboe return 1; 258b5af82930ccfd7dda6a1b11794efb452eb76d8dcJens Axboe 259a978ba684deb758465a0ccb18a008797636e8054Jens Axboe f->last_free_lookup = 0; 260a978ba684deb758465a0ccb18a008797636e8054Jens Axboe f->last_completed_pos = 0; 261a978ba684deb758465a0ccb18a008797636e8054Jens Axboe f->last_pos = 0; 262a978ba684deb758465a0ccb18a008797636e8054Jens Axboe f->open = 1; 263a978ba684deb758465a0ccb18a008797636e8054Jens Axboe 264a978ba684deb758465a0ccb18a008797636e8054Jens Axboe if (f->file_map) 265a978ba684deb758465a0ccb18a008797636e8054Jens Axboe memset(f->file_map, 0, f->num_maps * sizeof(long)); 266a978ba684deb758465a0ccb18a008797636e8054Jens Axboe 267a978ba684deb758465a0ccb18a008797636e8054Jens Axboe td->nr_open_files++; 268a978ba684deb758465a0ccb18a008797636e8054Jens Axboe return 0; 269b5af82930ccfd7dda6a1b11794efb452eb76d8dcJens Axboe} 270b5af82930ccfd7dda6a1b11794efb452eb76d8dcJens Axboe 271b5af82930ccfd7dda6a1b11794efb452eb76d8dcJens Axboevoid td_io_close_file(struct thread_data *td, struct fio_file *f) 272b5af82930ccfd7dda6a1b11794efb452eb76d8dcJens Axboe{ 273860a3044085c676632f9832a78133cd9847cbe62Jens Axboe if (f->open) { 274860a3044085c676632f9832a78133cd9847cbe62Jens Axboe if (td->io_ops->close_file) 275860a3044085c676632f9832a78133cd9847cbe62Jens Axboe td->io_ops->close_file(td, f); 276860a3044085c676632f9832a78133cd9847cbe62Jens Axboe td->nr_open_files--; 277860a3044085c676632f9832a78133cd9847cbe62Jens Axboe f->open = 0; 278860a3044085c676632f9832a78133cd9847cbe62Jens Axboe } 279b5af82930ccfd7dda6a1b11794efb452eb76d8dcJens Axboe} 280