summaryrefslogtreecommitdiffstats
path: root/web/server/h2o/libh2o/deps/mruby/src/state.c
diff options
context:
space:
mode:
Diffstat (limited to '')
-rw-r--r--web/server/h2o/libh2o/deps/mruby/src/state.c303
1 files changed, 303 insertions, 0 deletions
diff --git a/web/server/h2o/libh2o/deps/mruby/src/state.c b/web/server/h2o/libh2o/deps/mruby/src/state.c
new file mode 100644
index 00000000..039d67d5
--- /dev/null
+++ b/web/server/h2o/libh2o/deps/mruby/src/state.c
@@ -0,0 +1,303 @@
+/*
+** state.c - mrb_state open/close functions
+**
+** See Copyright Notice in mruby.h
+*/
+
+#include <stdlib.h>
+#include <string.h>
+#include <mruby.h>
+#include <mruby/irep.h>
+#include <mruby/variable.h>
+#include <mruby/debug.h>
+#include <mruby/string.h>
+
+void mrb_init_core(mrb_state*);
+void mrb_init_mrbgems(mrb_state*);
+
+void mrb_gc_init(mrb_state*, mrb_gc *gc);
+void mrb_gc_destroy(mrb_state*, mrb_gc *gc);
+
+static mrb_value
+inspect_main(mrb_state *mrb, mrb_value mod)
+{
+ return mrb_str_new_lit(mrb, "main");
+}
+
+MRB_API mrb_state*
+mrb_open_core(mrb_allocf f, void *ud)
+{
+ static const mrb_state mrb_state_zero = { 0 };
+ static const struct mrb_context mrb_context_zero = { 0 };
+ mrb_state *mrb;
+
+ mrb = (mrb_state *)(f)(NULL, NULL, sizeof(mrb_state), ud);
+ if (mrb == NULL) return NULL;
+
+ *mrb = mrb_state_zero;
+ mrb->allocf_ud = ud;
+ mrb->allocf = f;
+ mrb->atexit_stack_len = 0;
+
+ mrb_gc_init(mrb, &mrb->gc);
+ mrb->c = (struct mrb_context*)mrb_malloc(mrb, sizeof(struct mrb_context));
+ *mrb->c = mrb_context_zero;
+ mrb->root_c = mrb->c;
+
+ mrb_init_core(mrb);
+
+ return mrb;
+}
+
+void*
+mrb_default_allocf(mrb_state *mrb, void *p, size_t size, void *ud)
+{
+ if (size == 0) {
+ free(p);
+ return NULL;
+ }
+ else {
+ return realloc(p, size);
+ }
+}
+
+struct alloca_header {
+ struct alloca_header *next;
+ char buf[];
+};
+
+MRB_API void*
+mrb_alloca(mrb_state *mrb, size_t size)
+{
+ struct alloca_header *p;
+
+ p = (struct alloca_header*) mrb_malloc(mrb, sizeof(struct alloca_header)+size);
+ p->next = mrb->mems;
+ mrb->mems = p;
+ return (void*)p->buf;
+}
+
+static void
+mrb_alloca_free(mrb_state *mrb)
+{
+ struct alloca_header *p;
+ struct alloca_header *tmp;
+
+ if (mrb == NULL) return;
+ p = mrb->mems;
+
+ while (p) {
+ tmp = p;
+ p = p->next;
+ mrb_free(mrb, tmp);
+ }
+}
+
+MRB_API mrb_state*
+mrb_open(void)
+{
+ mrb_state *mrb = mrb_open_allocf(mrb_default_allocf, NULL);
+
+ return mrb;
+}
+
+MRB_API mrb_state*
+mrb_open_allocf(mrb_allocf f, void *ud)
+{
+ mrb_state *mrb = mrb_open_core(f, ud);
+
+ if (mrb == NULL) {
+ return NULL;
+ }
+
+#ifndef DISABLE_GEMS
+ mrb_init_mrbgems(mrb);
+ mrb_gc_arena_restore(mrb, 0);
+#endif
+ return mrb;
+}
+
+void mrb_free_symtbl(mrb_state *mrb);
+
+void
+mrb_irep_incref(mrb_state *mrb, mrb_irep *irep)
+{
+ irep->refcnt++;
+}
+
+void
+mrb_irep_decref(mrb_state *mrb, mrb_irep *irep)
+{
+ irep->refcnt--;
+ if (irep->refcnt == 0) {
+ mrb_irep_free(mrb, irep);
+ }
+}
+
+void
+mrb_irep_free(mrb_state *mrb, mrb_irep *irep)
+{
+ int i;
+
+ if (!(irep->flags & MRB_ISEQ_NO_FREE))
+ mrb_free(mrb, irep->iseq);
+ if (irep->pool) for (i=0; i<irep->plen; i++) {
+ if (mrb_type(irep->pool[i]) == MRB_TT_STRING) {
+ mrb_gc_free_str(mrb, RSTRING(irep->pool[i]));
+ mrb_free(mrb, mrb_obj_ptr(irep->pool[i]));
+ }
+#ifdef MRB_WORD_BOXING
+ else if (mrb_type(irep->pool[i]) == MRB_TT_FLOAT) {
+ mrb_free(mrb, mrb_obj_ptr(irep->pool[i]));
+ }
+#endif
+ }
+ mrb_free(mrb, irep->pool);
+ mrb_free(mrb, irep->syms);
+ for (i=0; i<irep->rlen; i++) {
+ mrb_irep_decref(mrb, irep->reps[i]);
+ }
+ if (irep->outer)
+ mrb_irep_decref(mrb, irep->outer);
+ mrb_free(mrb, irep->reps);
+ mrb_free(mrb, irep->lv);
+ if (irep->own_filename) {
+ mrb_free(mrb, (void *)irep->filename);
+ }
+ mrb_free(mrb, irep->lines);
+ mrb_debug_info_free(mrb, irep->debug_info);
+ mrb_free(mrb, irep);
+}
+
+mrb_value
+mrb_str_pool(mrb_state *mrb, mrb_value str)
+{
+ struct RString *s = mrb_str_ptr(str);
+ struct RString *ns;
+ char *ptr;
+ mrb_int len;
+
+ ns = (struct RString *)mrb_malloc(mrb, sizeof(struct RString));
+ ns->tt = MRB_TT_STRING;
+ ns->c = mrb->string_class;
+
+ if (RSTR_NOFREE_P(s)) {
+ ns->flags = MRB_STR_NOFREE;
+ ns->as.heap.ptr = s->as.heap.ptr;
+ ns->as.heap.len = s->as.heap.len;
+ ns->as.heap.aux.capa = 0;
+ }
+ else {
+ ns->flags = 0;
+ if (RSTR_EMBED_P(s)) {
+ ptr = s->as.ary;
+ len = RSTR_EMBED_LEN(s);
+ }
+ else {
+ ptr = s->as.heap.ptr;
+ len = s->as.heap.len;
+ }
+
+ if (len < RSTRING_EMBED_LEN_MAX) {
+ RSTR_SET_EMBED_FLAG(ns);
+ RSTR_SET_EMBED_LEN(ns, len);
+ if (ptr) {
+ memcpy(ns->as.ary, ptr, len);
+ }
+ ns->as.ary[len] = '\0';
+ }
+ else {
+ ns->as.heap.ptr = (char *)mrb_malloc(mrb, (size_t)len+1);
+ ns->as.heap.len = len;
+ ns->as.heap.aux.capa = len;
+ if (ptr) {
+ memcpy(ns->as.heap.ptr, ptr, len);
+ }
+ ns->as.heap.ptr[len] = '\0';
+ }
+ }
+ return mrb_obj_value(ns);
+}
+
+void mrb_free_backtrace(mrb_state *mrb);
+
+MRB_API void
+mrb_free_context(mrb_state *mrb, struct mrb_context *c)
+{
+ if (!c) return;
+ mrb_free(mrb, c->stbase);
+ mrb_free(mrb, c->cibase);
+ mrb_free(mrb, c->rescue);
+ mrb_free(mrb, c->ensure);
+ mrb_free(mrb, c);
+}
+
+MRB_API void
+mrb_close(mrb_state *mrb)
+{
+ if (!mrb) return;
+ if (mrb->atexit_stack_len > 0) {
+ mrb_int i;
+ for (i = mrb->atexit_stack_len; i > 0; --i) {
+ mrb->atexit_stack[i - 1](mrb);
+ }
+#ifndef MRB_FIXED_STATE_ATEXIT_STACK
+ mrb_free(mrb, mrb->atexit_stack);
+#endif
+ }
+
+ /* free */
+ mrb_gc_free_gv(mrb);
+ mrb_free_context(mrb, mrb->root_c);
+ mrb_free_symtbl(mrb);
+ mrb_alloca_free(mrb);
+ mrb_gc_destroy(mrb, &mrb->gc);
+ mrb_free(mrb, mrb);
+}
+
+MRB_API mrb_irep*
+mrb_add_irep(mrb_state *mrb)
+{
+ static const mrb_irep mrb_irep_zero = { 0 };
+ mrb_irep *irep;
+
+ irep = (mrb_irep *)mrb_malloc(mrb, sizeof(mrb_irep));
+ *irep = mrb_irep_zero;
+ irep->refcnt = 1;
+ irep->own_filename = FALSE;
+
+ return irep;
+}
+
+MRB_API mrb_value
+mrb_top_self(mrb_state *mrb)
+{
+ if (!mrb->top_self) {
+ mrb->top_self = (struct RObject*)mrb_obj_alloc(mrb, MRB_TT_OBJECT, mrb->object_class);
+ mrb_define_singleton_method(mrb, mrb->top_self, "inspect", inspect_main, MRB_ARGS_NONE());
+ mrb_define_singleton_method(mrb, mrb->top_self, "to_s", inspect_main, MRB_ARGS_NONE());
+ }
+ return mrb_obj_value(mrb->top_self);
+}
+
+MRB_API void
+mrb_state_atexit(mrb_state *mrb, mrb_atexit_func f)
+{
+#ifdef MRB_FIXED_STATE_ATEXIT_STACK
+ if (mrb->atexit_stack_len + 1 > MRB_FIXED_STATE_ATEXIT_STACK_SIZE) {
+ mrb_raise(mrb, E_RUNTIME_ERROR, "exceeded fixed state atexit stack limit");
+ }
+#else
+ size_t stack_size;
+
+ stack_size = sizeof(mrb_atexit_func) * (mrb->atexit_stack_len + 1);
+ if (mrb->atexit_stack_len == 0) {
+ mrb->atexit_stack = (mrb_atexit_func*)mrb_malloc(mrb, stack_size);
+ }
+ else {
+ mrb->atexit_stack = (mrb_atexit_func*)mrb_realloc(mrb, mrb->atexit_stack, stack_size);
+ }
+#endif
+
+ mrb->atexit_stack[mrb->atexit_stack_len++] = f;
+}