luaeventloop/lel_instance.h

   1 #ifndef __LUAIXP_INSTANCE_H__
   2 #define __LUAIXP_INSTANCE_H__
   3
   4 #include <lua.h>
   5
   6 #define L_EVENTLOOP_MT "eventloop.eventloop_mt"
   7
   8 /* the C representation of a eventloop instance object */
   9 struct lel_program;
  10 struct lel_eventloop {
  11         struct lel_program **progs;     // array of programs, sorted by fd
  12         size_t progs_size;              // number allocated entries
  13         size_t progs_count;             // first unused entry
  14
  15         fd_set all_fds;
  16         int max_fd;
  17 };
  18 #define LEL_PROGS_ARRAY_GROWS_BY 32
  19
  20 struct lel_program {
  21         char *cmd;
  22         int fd;
  23         int pid;
  24         int read_rc;
  25         int read_errno;
  26         size_t buf_pos;
  27         size_t buf_len;
  28         char buf[0];            // this has to be last in the structure
  29 };
  30 #define LEL_PROGRAM_IO_BUF_SIZE 4096
  31
  32 extern struct lel_eventloop *lel_checkeventloop (lua_State *L, int narg);
  33 extern int l_eventloop_tostring (lua_State *L);
  34
  35 /* exported api */
  36 extern int l_eventloop_add_exec (lua_State *L);
  37 extern int l_eventloop_check_exec (lua_State *L);
  38 extern int l_eventloop_kill_exec (lua_State *L);
  39 extern int l_eventloop_run_loop (lua_State *L);
  40 extern int l_eventloop_kill_all (lua_State *L);
  41
  42 #endif // __LUAIXP_INSTANCE_H__