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-rw-r--r--echld/parent.c949
1 files changed, 0 insertions, 949 deletions
diff --git a/echld/parent.c b/echld/parent.c
deleted file mode 100644
index 468291ec60..0000000000
--- a/echld/parent.c
+++ /dev/null
@@ -1,949 +0,0 @@
-/* parent.c
- * epan working child API internals
- * Parent process routines and definitions
- *
- * Wireshark - Network traffic analyzer
- * By Gerald Combs <gerald@wireshark.org>
- * Copyright 1998 Gerald Combs
- *
- * Copyright (c) 2013 by Luis Ontanon <luis@ontanon.org>
- *
- * This program is free software; you can redistribute it and/or
- * modify it under the terms of the GNU General Public License
- * as published by the Free Software Foundation; either version 2
- * of the License, or (at your option) any later version.
- *
- * This program is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
- * GNU General Public License for more details.
- *
- * You should have received a copy of the GNU General Public License
- * along with this program; if not, write to the Free Software
- * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
- */
-
-#include "config.h"
-
-#include "echld-int.h"
-
-/**
- PARENT and API
- **/
-
-#define MAX_PENDING_REQS 16;
-
-typedef struct _req {
- int reqh_id;
- echld_msg_cb_t cb;
- void* cb_data;
- struct timeval tv;
-} reqh_t;
-
-typedef struct _hdlr {
- int id;
- echld_msg_type_t type;
- echld_msg_cb_t cb;
- void* cb_data;
-} hdlr_t;
-
-typedef struct _echld_child {
- int chld_id;
- void* data;
- echld_new_cb_t cb;
- child_state_t state;
- GArray* handlers;
- GArray* reqs;
-} echld_t;
-
-struct _echld_parent {
- echld_t* children;
- echld_reader_t reader;
- int dispatcher_fd;
- int dispatcher_pid;
- int reqh_id;
- GByteArray* snd;
- int closing;
- echld_parent_encoder_t* enc;
- parent_decoder_t* dec;
-} parent = {NULL,{NULL,0,NULL,-1,NULL,0},-1,-1,1,NULL,0,NULL,NULL};
-
-
-static int reqh_ids = 1;
-
-
-#ifdef DEBUG_PARENT
-
-static int dbg_level = DEBUG_PARENT;
-
-static void parent_dbg(int level, const char* fmt, ...) {
- va_list ap;
- char str[1024];
-
- if (level > dbg_level) return;
-
- va_start(ap,fmt);
- g_vsnprintf(str,1024,fmt,ap);
- va_end(ap);
-
- fprintf(stderr,"ParentDebug: level=%d msg='%s'\n",level,str);
- fflush(stderr);
-}
-
-#define PARENT_DBG(attrs) parent_dbg attrs
-#define PARENT_SEND(BYTEARR,CHILDNUM,TYPE,R_ID) do { long st = echld_write_frame(parent.dispatcher_fd, BYTEARR, CHILDNUM, TYPE, R_ID, NULL); PARENT_DBG((1,"SEND type='%s' chld_id=%d reqh_id=%d err_msg='%s'",TY(TYPE),CHILDNUM,R_ID, ( st >= 8 ? "ok" : ((st<0)?g_strerror(errno):"?") ) )); } while(0)
-
-#else
-#define PARENT_DBG(attrs)
-#define PARENT_SEND(BYTEARR,CHILDNUM,TYPE,R_ID) echld_write_frame(parent.dispatcher_fd, BYTEARR, CHILDNUM, TYPE, R_ID, NULL)
-#endif
-
-extern void echld_set_parent_dbg_level(int lvl) {
- (dbg_level = lvl);
- if (lvl > 6) {
- echld_common_set_dbg(lvl,stderr,"parent");
- }
- PARENT_DBG((0,"Debug Level Set: %d",lvl));
-}
-
-
-#define PARENT_FATAL(attrs) parent_fatal attrs
-
-static void parent_fatal(int exit_code, const char* fmt, ...) {
- va_list ap;
- char str[1024];
-
- va_start(ap,fmt);
- g_vsnprintf(str,1024,fmt,ap);
- va_end(ap);
-
-#ifdef DEBUG_PARENT
- PARENT_DBG((0,"Fatal error: exit_code=%d str=%s",exit_code,str));
-#else
- fprintf(stderr,"Fatal error: exit_code=%d str=%s",exit_code,str);
-#endif
-
- kill(parent.dispatcher_pid,SIGTERM);
- exit(exit_code);
-}
-
-static void echld_cleanup(void) {
-#if 0
- int i;
-#endif
-
- PARENT_DBG((4,"echld_cleanup starting"));
-
-#if 0
- for (i=0;i<ECHLD_MAX_CHILDREN;i++) {
- if ( parent.children[i].handlers ) g_array_free(parent.children[i].handlers,TRUE);
- if ( parent.children[i].reqs ) g_array_free(parent.children[i].reqs,TRUE);
- };
-
- g_free(parent.children);
-
- g_byte_array_free(parent.snd,TRUE);
-#endif
-
- PARENT_DBG((3,"echld_cleanup done"));
-
-}
-
-static void parent_child_cleanup(echld_t* c) {
-
- PARENT_DBG((2,"cleanup chld_id=%d",c->chld_id));
- c->chld_id = -1;
- c->data = NULL;
- c->state = FREE;
- g_array_set_size(c->handlers,0);
- g_array_set_size(c->reqs,0);
-}
-
-
-void parent_reaper(int sig) {
- int pid;
- int status;
-
- if (sig == SIGCHLD) {
- PARENT_FATAL((3333,"Must be SIGCHLD!"));
- }
-
- pid = waitpid(-1, &status, WNOHANG);
- PARENT_DBG((2,"SIGCHLD pid=%d",pid));
-
- if (pid == parent.dispatcher_pid) {
-
- if (! parent.closing) {
- /* crashed */
- sleep(120);
- PARENT_FATAL((DISPATCHER_DEAD,"Dispatcher process dead"));
- }
-
- return;
- } else {
- /* XXX: do we care? */
- return;
- }
-
- return;
-}
-
-static echld_bool_t hello_cb(echld_msg_type_t type, enc_msg_t* msg_buff, void* ud) {
- echld_init_t* init = (echld_init_t*)ud;
- char* err = NULL;
- int errnum = 0;
-
- if (init && init->dispatcher_hello_cb) {
- switch(type) {
- case ECHLD_ERROR:
- parent.dec->error(msg_buff, &errnum ,&err);
- break;
- case ECHLD_TIMED_OUT:
- err = g_strdup("timedout");
- break;
- default:
- err = g_strdup_printf("Wrong MSG 'HELLO' expected, got '%s",TY(type));
- break;
- case ECHLD_HELLO:
- break;
- }
-
- init->dispatcher_hello_cb(ud,err);
- if (err) g_free(err);
- }
-
- return TRUE;
-}
-
-
-
-/* will initialize epan registering protocols and taps */
-void echld_initialize(echld_init_t* init) {
- int from_disp[2];
- int to_disp[2];
- PARENT_DBG((1,"Echld Starting"));
-
- if (!init) {
- PARENT_FATAL((NO_INITIALIZER,"Missing Initializer"));
- }
-
- if (init->encoding != ECHLD_ENCODING_JSON) {
- PARENT_FATAL((UNIMPLEMENTED,"Only JSON implemented"));
- }
-
- if ( pipe(to_disp) ) {
- PARENT_FATAL((DISPATCHER_PIPE_FAILED,"Failed to open pipe to dispatcher"));
- } else if( pipe(from_disp) ) {
- PARENT_FATAL((DISPATCHER_PIPE_FAILED,"Failed to open pipe from dispatcher"));
- } else {
- int pid;
- int i;
-
- PARENT_DBG((3,"Pipes Opened fr[0]=%d fr[1]=%d to[0]=%d to[1]=%d",from_disp[0],from_disp[1],to_disp[0],to_disp[1]));
-
- pid = fork();
-
- if ( pid < 0 ) {
- PARENT_FATAL((CANNOT_FORK,"Failed to fork() reason='%s'",g_strerror(errno)));
- } else if ( pid == 0) {
-#ifdef PARENT_THREADS
- reader_realloc_buf = child_realloc_buff;
-#endif
- /* child code */
- echld_cleanup();
-
- if (init->after_fork_cb)
- init->after_fork_cb(init->after_fork_cb_data);
-
- echld_dispatcher_start(to_disp,from_disp,init->argv0,init->main);
-
- PARENT_FATAL((SHOULD_HAVE_EXITED_BEFORE,"This shouldn't happen"));
- } else {
- /* parent code */
- #ifdef PARENT_THREADS
- reader_realloc_buf = parent_realloc_buff;
- #endif
-
- /* echld_common_set_dbg(9,stderr,"parent"); */
-
- PARENT_DBG((3,"Dispatcher forked"));
-
- echld_get_all_codecs(NULL, NULL, &parent.enc, &parent.dec);
- parent.children = g_new0(echld_t,ECHLD_MAX_CHILDREN);
- parent.snd = g_byte_array_new();
- parent.dispatcher_fd = to_disp[1];
- parent.dispatcher_pid = pid;
-
- echld_init_reader(&(parent.reader),from_disp[0],4096);
-
-
- for (i=0;i<ECHLD_MAX_CHILDREN;i++) {
- parent.children[i].chld_id = -1;
- parent.children[i].data = NULL;
- parent.children[i].state = FREE;
- parent.children[i].handlers = g_array_new(TRUE,TRUE,sizeof(hdlr_t));
- parent.children[i].reqs = g_array_new(TRUE,TRUE,sizeof(reqh_t));
- }
-
- parent.children[0].chld_id = 0;
- parent.children[0].state = IDLE;
-
- signal(SIGCHLD,parent_reaper);
-#if 0
- close(to_disp[0]);
- close(from_disp[1]);
-#endif
- if (init->dispatcher_hello_cb) echld_msgh(0, ECHLD_HELLO, hello_cb, init);
-
- PARENT_DBG((3,"Ready"));
- }
- }
-}
-
-
-extern echld_state_t echld_terminate(void) {
-
- parent.closing = TRUE;
- PARENT_SEND(NULL,0,ECHLD_CLOSE_CHILD,++reqh_ids);
-
- do {;} while(sleep(1)); /* wait a full sec without signals */
-
- echld_cleanup();
- close(parent.dispatcher_fd);
- kill(parent.dispatcher_pid,SIGTERM);
- return TRUE;
-}
-
-
-
-
-static echld_t* get_child(int id) {
- int i;
- for (i=0;i<ECHLD_MAX_CHILDREN;i++) {
- if (parent.children[i].chld_id == id) return &(parent.children[i]);
- };
-
- return NULL;
-}
-
-
-/* send a request */
-
-int reqh_id_idx(echld_t* c, int reqh_id) {
- int i;
- int imax = c->reqs->len;
- reqh_t* rr = (reqh_t*)c->reqs->data;
-
- for(i=0; i < imax ; i++) {
- if (rr[i].reqh_id == reqh_id)
- return i;
- }
-
- return -1;
-}
-
-
-static echld_state_t reqh_snd(echld_t* c, echld_msg_type_t t, GByteArray* ba, echld_msg_cb_t resp_cb, void* cb_data) {
- int idx;
- reqh_t* r;
- int reqh_id = reqh_ids++;
-
- if (!c) {
- PARENT_DBG((1,"REQH_SND: No such child"));
- return 1;
- }
-
- idx = reqh_id_idx(c,-1);
- if (idx < 0) {
- reqh_t req;
- idx = c->reqs->len;
- g_array_append_val(c->reqs,req);
- }
-
- r = &(((reqh_t*)c->reqs->data)[idx]);
-
- r->reqh_id = reqh_id;
- r->cb = resp_cb;
- r->cb_data = cb_data;
-
- gettimeofday(&(r->tv),NULL);
-
- PARENT_DBG((4,"reqh_add: idx='%d'",idx));
-
- PARENT_DBG((3,"REQH_SND: type='%s' chld_id=%d reqh_id=%d",TY(t), c->chld_id,reqh_id));
-
- PARENT_SEND(ba,c->chld_id,t,reqh_id);
-
- if (ba) g_byte_array_free(ba,TRUE); /* do we? */
-
- return reqh_id;
-}
-
-
-extern echld_reqh_id_t echld_reqh(
- echld_chld_id_t child_id,
- echld_msg_type_t t,
- int usecs_timeout _U_,
- enc_msg_t* ba,
- echld_msg_cb_t resp_cb,
- void* cb_data) {
- return reqh_snd(get_child(child_id),t,ba,resp_cb,cb_data);
-}
-
-/* get callback data for a live request */
-extern void* echld_reqh_get_data(int child_id, int reqh_id) {
- echld_t* c = get_child(child_id);
- int idx;
-
- if (!c) return NULL;
-
- idx = reqh_id_idx(c,reqh_id);
-
- if (idx >= 0)
- return g_array_index(c->reqs, reqh_t, idx).cb_data;
- else
- return NULL;
-}
-
-/* get the callback for a live request */
-extern echld_msg_cb_t echld_reqh_get_cb(int child_id, int reqh_id) {
- echld_t* c = get_child(child_id);
- int idx;
-
- if (!c) return NULL;
-
- idx = reqh_id_idx(c,reqh_id);
-
- if (idx >= 0)
- return g_array_index(c->reqs, reqh_t, idx).cb;
- else
- return NULL;
-}
-
-/* set callback data for a live request */
-extern gboolean echld_reqh_set_data(int child_id, int reqh_id, void* cb_data) {
- echld_t* c = get_child(child_id);
- int idx;
-
- if (!c) return FALSE;
-
- idx = reqh_id_idx(c,reqh_id);
-
- if (idx < 0) return FALSE;
-
- g_array_index(c->reqs, reqh_t, idx).cb_data = cb_data;
-
- return TRUE;
-}
-
-/* get the callback for a live request */
-extern gboolean echld_reqh_set_cb(int child_id, int reqh_id, echld_msg_cb_t cb){
- echld_t* c = get_child(child_id);
- int idx;
-
- if (!c) return FALSE;
-
- idx = reqh_id_idx(c,reqh_id);
-
- if (idx < 0) return FALSE;
-
- g_array_index(c->reqs, reqh_t, idx).cb = cb;
- return TRUE;
-}
-
-
-/* stop receiving a live request */
-extern gboolean echld_reqh_detach(int child_id, int reqh_id) {
- echld_t* c = get_child(child_id);
- int idx;
-
- if (!c) return FALSE;
-
- idx = reqh_id_idx(c,reqh_id);
-
- if (idx < 0) return FALSE;
-
- g_array_remove_index(c->reqs,idx);
-
- return TRUE;
-}
-
-
-static echld_bool_t parent_dead_child(echld_msg_type_t type, enc_msg_t* ba, void* data) {
- echld_t* c = (echld_t*)data;
- char* s;
-
- if (type != ECHLD_CHILD_DEAD) {
- PARENT_DBG((1, "Must Be ECHLD_CHILD_DEAD"));
- return 1;
- }
-
- if ( parent.dec->child_dead(ba,&s) ) {
- PARENT_DBG((1,"Dead Child[%d]: %s",c->chld_id,s));
- g_free(s);
- }
-
- parent_child_cleanup(c);
- return 0;
-}
-
-static echld_bool_t parent_get_hello(echld_msg_type_t type, enc_msg_t* ba, void* data) {
- echld_t* c = (echld_t*)data;
- int err_id;
- char* err = NULL;
-
- switch (type) {
- case ECHLD_HELLO:
- PARENT_DBG((1,"Child[%d]: =>IDLE",c->chld_id));
- c->state = IDLE;
- break;
- case ECHLD_ERROR:
- parent.dec->error(ba,&err_id,&err);
- break;
- case ECHLD_TIMED_OUT:
- err = g_strdup("timedout");
- break;
- default:
- err = g_strdup_printf("Wrong MSG 'HELLO' expected, got '%s",TY(type));
- break;
- }
-
- if (c->cb)
- c->cb(c->data,err);
-
- if (err) g_free(err);
-
- return TRUE;
-}
-
-
-
-
-
-int chld_cmp(const void *a, const void *b) {
- return ((echld_t*)b)->chld_id - ((echld_t*)a)->chld_id;
-}
-
-static int msgh_attach(echld_t* c, echld_msg_type_t t, echld_msg_cb_t resp_cb, void* cb_data);
-
-static int next_chld_id = 1;
-
-extern int echld_new(enc_msg_t* new_child_em, echld_new_cb_t cb, void* child_data) {
- echld_t* c = get_child(-1);
-
- if (!c) return -1;
-
- c->chld_id = (next_chld_id++);
- c->data = child_data;
- c->state = CREATING;
- c->cb = cb;
-
- PARENT_DBG((1,"Child[%d]: =>CREATING",c->chld_id));
-
- msgh_attach(c,ECHLD_CHILD_DEAD, parent_dead_child , c);
- reqh_snd(c, ECHLD_NEW_CHILD, (GByteArray*)new_child_em, parent_get_hello, c);
-
- return c->chld_id;
-}
-
-
-
-/* XXX these fail silently */
-extern void* echld_get_data(int child_id) {
- echld_t* c = get_child(child_id);
- return c ? c->data : NULL;
-}
-
-extern echld_state_t echld_set_data(echld_chld_id_t chld_id, void* data) {
- echld_t* c = get_child(chld_id);
- if (c) {
- c->data = data;
- return TRUE;
- }
-
- return FALSE;
-}
-
-static int msgh_idx(echld_t* c, int msgh_id) {
- int i = 0;
- int imax = c->handlers->len;
-
- for (i=0;i<imax;i++) {
- if (((hdlr_t*)(c->handlers->data))[i].id == msgh_id) return i;
- }
-
- return -1;
-}
-
-/* start a message handler */
-static int msgh_attach(echld_t* c, echld_msg_type_t t, echld_msg_cb_t resp_cb, void* cb_data) {
- hdlr_t h;
- static int msgh_id = 1;
-
- h.id = msgh_id++;
- h.type = t;
- h.cb = resp_cb;
- h.cb_data = cb_data;
-
- g_array_append_val(c->handlers,h);
- return 0;
-}
-
-extern int echld_msgh(int child_id, echld_msg_type_t t, echld_msg_cb_t resp_cb, void* cb_data) {
- echld_t* c = get_child(child_id);
-
- if (c) return msgh_attach(c,t,resp_cb,cb_data);
- else return -1;
-}
-
-
-/* stop it */
-static echld_state_t msgh_detach(echld_t* c, int msgh_id) {
- int idx = msgh_idx(c,msgh_id);
-
- if (idx < 0) return -1;
-
- g_array_remove_index(c->handlers,idx);
-
- return 1;
-}
-
-extern echld_state_t echld_msgh_detach(int child_id, int msgh_id) {
- echld_t* c = get_child(child_id);
- return msgh_detach(c,msgh_id);
-}
-
-/* get a msgh's data */
-
-static void* msgh_get_data(echld_t* c, int msgh_id) {
- int idx = msgh_idx(c,msgh_id);
-
- if (idx < 0) return NULL;
-
- return ((hdlr_t*)(c->handlers->data))[idx].cb_data;
-}
-
-extern void* echld_msgh_get_data(int child_id, int msgh_id) {
- echld_t* c = get_child(child_id);
- return msgh_get_data(c,msgh_id);
-}
-
-/* get a msgh's cb */
-static echld_msg_cb_t msgh_get_cb(echld_t* c, int msgh_id) {
- int idx = msgh_idx(c,msgh_id);
-
- if (idx < 0) return NULL;
-
- return ((hdlr_t*)(c->handlers->data))[idx].cb;
-}
-
-extern echld_msg_cb_t echld_msgh_get_cb(int child_id, int msgh_id) {
- echld_t* c = get_child(child_id);
- return msgh_get_cb(c,msgh_id);
-}
-
-/* get a msgh's type */
-static echld_msg_type_t msgh_get_type(echld_t* c, int msgh_id) {
- int idx = msgh_idx(c,msgh_id);
-
- if (idx < 0) return EC_ACTUAL_ERROR;
-
- return ((hdlr_t*)(c->handlers->data))[idx].type;
-}
-
-extern echld_msg_type_t echld_msgh_get_type(int child_id, int msgh_id) {
- echld_t* c = get_child(child_id);
- return c ? msgh_get_type(c,msgh_id) : EC_ACTUAL_ERROR;
-}
-
-/* get it all from a msgh */
-static echld_state_t msgh_get_all(echld_t* c, int msgh_id, echld_msg_type_t* t, echld_msg_cb_t* cb, void** data) {
- int idx = msgh_idx(c,msgh_id);
- hdlr_t* h;
-
- if (idx < 0) return -1;
-
- h = &(((hdlr_t*)(c->handlers->data))[idx]);
-
- if (t) *t = h->type;
- if (cb) *cb = h->cb;
- if (data) *data = h->cb_data;
-
- return 0;
-}
-
-extern gboolean echld_msgh_get_all(int child_id, int msgh_id, echld_msg_type_t* t, echld_msg_cb_t* cb, void** data) {
- echld_t* c = get_child(child_id);
- return c && msgh_get_all(c,msgh_id,t,cb,data);
-}
-
-static echld_state_t msgh_set_all(echld_t* c, int msgh_id, echld_msg_type_t t, echld_msg_cb_t cb, void* data) {
- int idx = msgh_idx(c,msgh_id);
- hdlr_t* h;
-
- if (idx < 0) return -1;
-
- h = &(((hdlr_t*)(c->handlers->data))[idx]);
-
- h->type = t;
- h->cb = cb;
- h->cb_data = data;
-
- return 0;
-}
-
-extern gboolean echld_msgh_set_all(int child_id, int msgh_id, echld_msg_type_t t, echld_msg_cb_t cb, void* data) {
- echld_t* c = get_child(child_id);
- return c ? msgh_set_all(c,msgh_id,t,cb,data) : FALSE;
-}
-
-/* set a msgh's data */
-static gboolean msgh_set_data(echld_t* c, int msgh_id, void* data) {
- int idx = msgh_idx(c,msgh_id);
-
- if (idx < 0) return FALSE;
-
- ((hdlr_t*)(c->handlers->data))[idx].cb_data = data;
-
- return TRUE;
-
-}
-
-extern gboolean echld_msgh_set_data(int child_id, int msgh_id, void* data){
- echld_t* c = get_child(child_id);
- return c ? msgh_set_data(c,msgh_id,data) : FALSE;
-}
-
-/* set a msgh's cb */
-extern gboolean msgh_set_cb(echld_t* c, int msgh_id, echld_msg_cb_t cb) {
- int idx = msgh_idx(c,msgh_id);
-
- if (idx < 0) return FALSE;
-
- ((hdlr_t*)(c->handlers->data))[idx].cb = cb;
-
- return TRUE;
-}
-
-extern gboolean echld_msgh_set_cb(int child_id, int msgh_id, echld_msg_cb_t cb) {
- echld_t* c = get_child(child_id);
- return c ? msgh_set_cb(c,msgh_id,cb) : FALSE;
-}
-
-/* set a msgh's type */
-
-static gboolean msgh_set_type(echld_t* c, int msgh_id, echld_msg_type_t t) {
- int idx = msgh_idx(c,msgh_id);
-
- if (idx < 0) return FALSE;
-
- ((hdlr_t*)(c->handlers->data))[idx].type = t;
-
- return TRUE;
-}
-
-extern gboolean echld_msgh_set_type(int child_id, int msgh_id, echld_msg_type_t t) {
- echld_t* c = get_child(child_id);
- return c ? msgh_set_type(c,msgh_id,t) : FALSE;
-}
-
-
-/* call cb(id,child_data,cb_data) for each child*/
-extern void echld_foreach_child(echld_iter_cb_t cb, void* cb_data) {
- int i;
- for(i=0;i<ECHLD_MAX_CHILDREN;i++) {
- echld_t* c = &(parent.children[i]);
- cb(c->chld_id,c->data,cb_data);
- }
-}
-
-static reqh_t* get_req(echld_t* c, int reqh_id) {
- int idx = reqh_id_idx(c,reqh_id);
- if(idx < 0) return NULL;
-
- return ((reqh_t*)(c->reqs->data))+idx;
-}
-
-static hdlr_t* get_next_hdlr_for_type(echld_t* c, echld_msg_type_t t, int* cookie) {
- int imax = c->handlers->len;
- hdlr_t* r = NULL;
-
- for (;(*cookie)<imax;(*cookie)++) {
- if (((hdlr_t*)(c->handlers->data))[*cookie].type == t) {
- r = &( ((hdlr_t*)(c->handlers->data))[*cookie] );
- (*cookie)++;
- break;
- }
- }
-
- return r;
-}
-
-static long parent_read_frame(guint8* b, size_t len, echld_chld_id_t chld_id, echld_msg_type_t t, echld_reqh_id_t reqh_id, void* data _U_) {
- echld_t* c = get_child(chld_id);
- GByteArray* ba = g_byte_array_new();
-
- PARENT_DBG((1,"MSG_IN<- ch=%d t='%s' rh=%d",chld_id,TY(t),reqh_id));
- g_byte_array_append(ba,b, (guint)len);
-
- if (c) {
- reqh_t* r = get_req(c, reqh_id);
- int i;
- hdlr_t* h;
- gboolean go_ahead = TRUE;
-
- if (r) { /* got that reqh_id */
- if (r->cb) {
- go_ahead = r->cb(t,ba,r->cb_data);
- }
-
- r->reqh_id = -1;
- r->cb = NULL;
- r->cb_data = 0;
- r->tv.tv_sec = 0;
- r->tv.tv_usec = 0;
-
- PARENT_DBG((2,"handled by reqh_id=%d msg='%s'",reqh_id,go_ahead?"retrying":"done"));
- }
-
- i=0;
- while(go_ahead && ( h = get_next_hdlr_for_type(c,t,&i))) {
- if (h->cb)
- go_ahead = h->cb(t,ba,h->cb_data);
-
- PARENT_DBG((2,"handled by t='%s' msgh_id=%d msg='%s'",TY(h->type), h->id,go_ahead?"retrying":"done"));
- }
- } else {
- PARENT_DBG((1,"parent_read_frame: No such child"));
- }
-
- g_byte_array_free(ba,TRUE);
- return 1;
-}
-
-extern int echld_fdset(fd_set* rfds, fd_set* efds) {
- FD_SET(parent.reader.fd, rfds);
- FD_SET(parent.reader.fd, efds);
- FD_SET(parent.dispatcher_fd, efds);
- return 2;
-}
-
-extern int echld_fd_read(fd_set* rfds, fd_set* efds) {
- int r_nfds=0;
- if (FD_ISSET(parent.reader.fd,efds) || FD_ISSET(parent.dispatcher_fd,efds) ) {
- /* Handle errored dispatcher */
- PARENT_DBG((1,"parent errored"));
- return -1;
- }
-
- if (FD_ISSET(parent.reader.fd,rfds)) {
- PARENT_DBG((3,"reading from dispatcher"));
- echld_read_frame(&(parent.reader),parent_read_frame,&(parent));
- }
-
- return r_nfds;
-}
-
-extern int echld_select(int nfds _U_, fd_set* rfds, fd_set* wfds, fd_set* efds, struct timeval* timeout) {
- fd_set my_rfds, my_wfds, my_efds;
- int r_nfds;
-
-
- if (rfds == NULL) { rfds = &my_rfds; FD_ZERO(rfds); }
- if (wfds == NULL) { wfds = &my_wfds; FD_ZERO(wfds); }
- if (efds == NULL) { efds = &my_efds; FD_ZERO(efds); }
-
- echld_fdset(rfds,efds);
-
- PARENT_DBG((5,"Select()"));
- r_nfds = select(FD_SETSIZE, rfds, wfds, efds, timeout);
-
- echld_fd_read(rfds,efds);
-
- return r_nfds ;
-}
-
-extern echld_state_t echld_wait(struct timeval* timeout) {
- if ( echld_select(0, NULL, NULL, NULL, timeout) < 0) {
- return -1;
- } else {
- return ECHLD_OK;
- }
-}
-
-enc_msg_t* echld_new_child_params(void) {
- return (enc_msg_t*)g_byte_array_new();
-}
-
-enc_msg_t* echld_new_child_params_merge(enc_msg_t* em1, enc_msg_t* em2) {
- GByteArray* ba = g_byte_array_new();
- GByteArray* b1 = (GByteArray*)em1;
- GByteArray* b2 = (GByteArray*)em2;
-
- g_byte_array_append(ba,b1->data,b1->len);
- g_byte_array_append(ba,b2->data,b2->len);
-
- return (enc_msg_t*)ba;
-}
-
-char* echld_new_child_params_str(enc_msg_t* em, const char* prefix, const char* postfix, int trunc_n, const char* fmt) {
- GByteArray* ba = (GByteArray*)em;
- GString* str = g_string_new(prefix);
- char* p = (char*) ba->data;
- int tot_len = ba->len;
- long rem = tot_len;
- p[rem-1] = '\0'; /* make sure last char is null */
-
- while(rem > 2) {
- char* param = p;
- long param_len = strlen(param)+1;
- char* value = p + param_len;
- long value_len;
-
- rem -= param_len;
-
- if (rem < 0) {
- g_string_free(str,TRUE);
- return NULL;
- }
-
- value_len = strlen(value)+1;
-
- rem -= value_len;
- p = value + value_len;
-
- if (rem < 0) {
- g_string_free(str,TRUE);
- return NULL;
- }
-
- g_string_append_printf(str,fmt,param,value);
- }
- g_string_truncate(str, str->len - trunc_n);
- g_string_append(str,postfix);
- return g_string_free(str,FALSE);
-}
-
-void echld_new_child_params_add_params(enc_msg_t* em, ...) {
- GByteArray* ba = (GByteArray*) em;
- va_list ap;
-
- va_start(ap,em);
- do {
- char* param_str = va_arg(ap, char*);
-
- if (param_str) {
- char* val_str = va_arg(ap, char*);
-
- g_byte_array_append(ba, (guint8*) param_str, (guint)strlen(param_str)+1);
- g_byte_array_append(ba, (guint8*) val_str, (guint)strlen(val_str)+1);
- continue;
- }
-
- break;
- } while(1);
- va_end(ap);
-
-}
-
-