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-rw-r--r--src/thread.c277
1 files changed, 163 insertions, 114 deletions
diff --git a/src/thread.c b/src/thread.c
index 25ad500..441793b 100644
--- a/src/thread.c
+++ b/src/thread.c
@@ -1,114 +1,163 @@
-#include "thread.h"
-#include "lua5.4/lauxlib.h"
-#include "lua5.4/lua.h"
-#include "stdint.h"
-#include <stdlib.h>
-#include <unistd.h>
-#include <pthread.h>
-#include "types/str.h"
-#include "util.h"
-
-struct thread_info {
- str* function;
- lua_State* L;
- int return_count;
- pthread_t tid;
- pthread_cond_t cond;
- pthread_mutex_t lock;
-};
-
-#include "io.h"
-
-int l_res(lua_State* L){
- int return_count = lua_gettop(L) - 1;
- lua_pushstring(L, "_");
- lua_gettable(L, 1);
- struct thread_info* info = lua_touserdata(L, -1);
- info->return_count = return_count;
-
- for(int i = info->return_count - 1; i != -1; i--){
- int ot = lua_gettop(L);
-
- lua_pushvalue(L, 2 + i);
- i_dcopy(L, info->L, NULL);
-
- lua_settop(L, ot);
- }
-
- pthread_mutex_unlock(&info->lock);
-
- pthread_exit(NULL);
- p_error("thread did not exit");
-
- return 1;
-}
-
-void* handle_thread(void* _args){
- struct thread_info* args = (struct thread_info*)_args;
- lua_State* L = args->L;
-
- lua_newtable(L);
- int res_idx = lua_gettop(L);
- luaI_tsetcf(L, res_idx, "res", l_res);
- luaI_tsetlud(L, res_idx, "_", args);
-
- luaL_loadbuffer(L, args->function->c, args->function->len, "thread");
- str_free(args->function);
-
- lua_pushvalue(L, res_idx);
- lua_call(L, 1, 0);
-
- pthread_mutex_unlock(&args->lock);
-
- return NULL;
-}
-
-int l_await(lua_State* L){
- lua_pushstring(L, "_");
- lua_gettable(L, 1);
- struct thread_info* info = lua_touserdata(L, -1);
-
- pthread_mutex_lock(&info->lock);
-
- for(int i = 0; i != info->return_count; i++){
- int ot = lua_gettop(info->L);
-
- lua_pushvalue(info->L, ot - info->return_count + i);
- i_dcopy(info->L, L, NULL);
-
- lua_settop(info->L, ot);
- }
-
- return info->return_count;
-}
-
-int l_async(lua_State* oL){
- lua_State* L = luaL_newstate();
-
- luaL_openlibs(L);
-
- lua_getglobal(oL, "_G");
- i_dcopy(oL, L, NULL);
- lua_set_global_table(L);
-
- struct thread_info* args = calloc(1, sizeof * args);
- args->L = L;
- args->cond = (pthread_cond_t)PTHREAD_COND_INITIALIZER;
- args->lock = (pthread_mutex_t)PTHREAD_MUTEX_INITIALIZER;
- pthread_mutex_lock(&args->lock);
- args->return_count = 0;
-
- args->function = str_init("");
- lua_pushvalue(oL, 1);
- lua_dump(oL, writer, (void*)args->function, 0);
-
- pthread_create(&args->tid, NULL, handle_thread, (void*)args);
- pthread_detach(args->tid);
-
- lua_newtable(oL);
- int res_idx = lua_gettop(oL);
- luaI_tsetcf(oL, res_idx, "await", l_await);
- luaI_tsetlud(oL, res_idx, "_", args);
- lua_pushvalue(oL, res_idx);
- return 1;
-}
+#include "thread.h"
+#include "lua5.4/lauxlib.h"
+#include "lua5.4/lua.h"
+#include "stdint.h"
+#include <stdlib.h>
+#include <unistd.h>
+#include <pthread.h>
+#include "types/str.h"
+#include "util.h"
+
+#include "types/larray.h"
+
+struct thread_info {
+ str* function;
+ lua_State* L;
+ int return_count;
+ pthread_t tid;
+ pthread_cond_t cond;
+ pthread_mutex_t lock;
+};
+
+#include "io.h"
+
+pthread_mutex_t thread_lock_lock = (pthread_mutex_t)PTHREAD_MUTEX_INITIALIZER;
+larray_t* thread_locks = NULL;
+
+int l_tlock(lua_State* L){
+ int idx = luaL_checkinteger(L, 1);
+
+ pthread_mutex_lock(&thread_lock_lock);
+ pthread_mutex_t mutex;
+ if(thread_locks == NULL) thread_locks = larray_init();
+ int i = 0;
+ if((i = larray_geti(thread_locks, idx)) == -1){
+ pthread_mutex_init(&mutex, NULL);
+ pthread_mutex_lock(&mutex);
+ larray_set(&thread_locks, idx, (void*)mutex);
+ } else {
+ pthread_mutex_t m = (pthread_mutex_t)thread_locks->arr[i].value;
+ pthread_mutex_unlock(&thread_lock_lock);
+ pthread_mutex_lock(&m);
+ pthread_mutex_lock(&thread_lock_lock);
+ thread_locks->arr[i].value = (void*)m;
+
+ }
+
+ pthread_mutex_unlock(&thread_lock_lock);
+ return 0;
+}
+
+int l_tunlock(lua_State* L){
+ int idx = luaL_checkinteger(L, 1);
+
+ pthread_mutex_lock(&thread_lock_lock);
+ int i = 0;
+ if(thread_locks != NULL && (i = larray_geti(thread_locks, idx)) != -1){
+ pthread_mutex_t m = (pthread_mutex_t)thread_locks->arr[i].value;
+ pthread_mutex_unlock(&m);
+ thread_locks->arr[i].value = (void*)m;
+ }
+
+ pthread_mutex_unlock(&thread_lock_lock);
+ return 0;
+}
+
+int l_res(lua_State* L){
+ int return_count = lua_gettop(L) - 1;
+ lua_pushstring(L, "_");
+ lua_gettable(L, 1);
+ struct thread_info* info = lua_touserdata(L, -1);
+ info->return_count = return_count;
+
+ for(int i = info->return_count - 1; i != -1; i--){
+ int ot = lua_gettop(L);
+
+ lua_pushvalue(L, 2 + i);
+ i_dcopy(L, info->L, NULL);
+
+ lua_settop(L, ot);
+ }
+
+ pthread_mutex_unlock(&info->lock);
+
+ pthread_exit(NULL);
+ p_error("thread did not exit");
+
+ return 1;
+}
+
+void* handle_thread(void* _args){
+ struct thread_info* args = (struct thread_info*)_args;
+ lua_State* L = args->L;
+
+ lua_newtable(L);
+ int res_idx = lua_gettop(L);
+ luaI_tsetlud(L, res_idx, "_", args);
+
+ lua_newtable(L);
+ int meta_idx = lua_gettop(L);
+ luaI_tsetcf(L, meta_idx, "__call", l_res);
+ lua_pushvalue(L, meta_idx);
+ lua_setmetatable(L, res_idx);
+
+ luaL_loadbuffer(L, args->function->c, args->function->len, "thread");
+ str_free(args->function);
+
+ lua_pushvalue(L, res_idx);
+ lua_call(L, 1, 0);
+
+ pthread_mutex_unlock(&args->lock);
+
+ return NULL;
+}
+
+int l_await(lua_State* L){
+ lua_pushstring(L, "_");
+ lua_gettable(L, 1);
+ struct thread_info* info = lua_touserdata(L, -1);
+
+ pthread_mutex_lock(&info->lock);
+
+ for(int i = 0; i != info->return_count; i++){
+ int ot = lua_gettop(info->L);
+
+ lua_pushvalue(info->L, ot - info->return_count + i);
+ i_dcopy(info->L, L, NULL);
+
+ lua_settop(info->L, ot);
+ }
+
+ return info->return_count;
+}
+
+int l_async(lua_State* oL){
+ lua_State* L = luaL_newstate();
+
+ luaL_openlibs(L);
+
+ lua_getglobal(oL, "_G");
+ i_dcopy(oL, L, NULL);
+ lua_set_global_table(L);
+
+ struct thread_info* args = calloc(1, sizeof * args);
+ args->L = L;
+ args->cond = (pthread_cond_t)PTHREAD_COND_INITIALIZER;
+ args->lock = (pthread_mutex_t)PTHREAD_MUTEX_INITIALIZER;
+ pthread_mutex_lock(&args->lock);
+ args->return_count = 0;
+
+ args->function = str_init("");
+ lua_pushvalue(oL, 1);
+ lua_dump(oL, writer, (void*)args->function, 0);
+
+ pthread_create(&args->tid, NULL, handle_thread, (void*)args);
+ pthread_detach(args->tid);
+
+ lua_newtable(oL);
+ int res_idx = lua_gettop(oL);
+ luaI_tsetcf(oL, res_idx, "await", l_await);
+ luaI_tsetlud(oL, res_idx, "_", args);
+ lua_pushvalue(oL, res_idx);
+ return 1;
+}
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