You can not select more than 25 topics
Topics must start with a letter or number, can include dashes ('-') and can be up to 35 characters long.
96 lines
2.2 KiB
96 lines
2.2 KiB
#ifndef SFRT_MODULE_H
|
|
#define SFRT_MODULE_H
|
|
|
|
#include <uv.h>
|
|
#include "types.h"
|
|
|
|
struct module {
|
|
char name[MOD_NAME_MAX];
|
|
char path[MOD_PATH_MAX];
|
|
|
|
void *dl_handle;
|
|
mod_main_fn_t entry_fn;
|
|
mod_glb_fn_t glb_init_fn;
|
|
mod_mem_fn_t mem_init_fn;
|
|
mod_tbl_fn_t tbl_init_fn;
|
|
|
|
struct indirect_table_entry indirect_table[INDIRECT_TABLE_SIZE];
|
|
|
|
i32 nargs;
|
|
u32 stack_size; // a specification?
|
|
u64 max_memory; //perhaps a specification of the module. (max 4GB)
|
|
u32 timeout; //again part of the module specification.
|
|
|
|
u32 refcnt; //ref count how many instances exist here.
|
|
|
|
// stand-alone vs serverless
|
|
#ifndef STANDALONE
|
|
struct sockaddr_in srvaddr;
|
|
int srvsock, srvport;
|
|
// unfortunately, using UV for accepting connections is not great!
|
|
// on_connection, to create a new accepted connection, will have to
|
|
// init a tcp handle, which requires a uvloop. cannot use main as
|
|
// rest of the connection is handled in sandboxing threads, with per-core(per-thread) tls data-structures.
|
|
// so, using direct epoll for accepting connections.
|
|
// uv_handle_t srvuv;
|
|
unsigned long max_req_sz, max_resp_sz, max_rr_sz; // req/resp from http..
|
|
#endif
|
|
};
|
|
|
|
struct module *module_alloc(char *mod_name, char *mod_path, i32 nargs, u32 stack_sz, u32 max_heap, u32 timeout, int port, int req_sz, int resp_sz);
|
|
// frees only if refcnt == 0
|
|
void module_free(struct module *mod);
|
|
struct module *module_find_by_name(char *name);
|
|
struct module *module_find_by_sock(int sock);
|
|
|
|
static inline int
|
|
module_is_valid(struct module *mod)
|
|
{
|
|
if (mod && mod->dl_handle && mod->entry_fn) return 1;
|
|
|
|
return 0;
|
|
}
|
|
|
|
static inline void
|
|
module_table_init(struct module *mod)
|
|
{
|
|
// called in a sandbox.
|
|
mod->tbl_init_fn();
|
|
}
|
|
|
|
static inline void
|
|
module_memory_init(struct module *mod)
|
|
{
|
|
// called in a sandbox.
|
|
mod->mem_init_fn();
|
|
}
|
|
|
|
static inline i32
|
|
module_entry(struct module *mod, i32 argc, i32 argv)
|
|
{
|
|
return mod->entry_fn(argc, argv);
|
|
}
|
|
|
|
// instantiate this module.
|
|
static inline void
|
|
module_acquire(struct module *mod)
|
|
{
|
|
// FIXME: atomic.
|
|
mod->refcnt++;
|
|
}
|
|
|
|
static inline void
|
|
module_release(struct module *mod)
|
|
{
|
|
// FIXME: atomic.
|
|
mod->refcnt--;
|
|
}
|
|
|
|
static inline i32
|
|
module_nargs(struct module *mod)
|
|
{
|
|
return mod->nargs;
|
|
}
|
|
|
|
#endif /* SFRT_MODULE_H */
|