diff options
| author | George Hazan <george.hazan@gmail.com> | 2013-11-10 21:43:18 +0000 | 
|---|---|---|
| committer | George Hazan <george.hazan@gmail.com> | 2013-11-10 21:43:18 +0000 | 
| commit | 530102b3b16fdc6f008cdf312e5977a878f295db (patch) | |
| tree | 3159eb3d5712151a33d796b7a0039ae9a4d00e09 /plugins/FTPFileYM/curl/docs/examples/hiperfifo.c | |
| parent | e40ecc70a7db28bdf78dad5d804e07d08a77159c (diff) | |
libcurl update
git-svn-id: http://svn.miranda-ng.org/main/trunk@6864 1316c22d-e87f-b044-9b9b-93d7a3e3ba9c
Diffstat (limited to 'plugins/FTPFileYM/curl/docs/examples/hiperfifo.c')
| -rw-r--r-- | plugins/FTPFileYM/curl/docs/examples/hiperfifo.c | 418 | 
1 files changed, 0 insertions, 418 deletions
diff --git a/plugins/FTPFileYM/curl/docs/examples/hiperfifo.c b/plugins/FTPFileYM/curl/docs/examples/hiperfifo.c deleted file mode 100644 index 6036643b16..0000000000 --- a/plugins/FTPFileYM/curl/docs/examples/hiperfifo.c +++ /dev/null @@ -1,418 +0,0 @@ -/*************************************************************************** - *                                  _   _ ____  _ - *  Project                     ___| | | |  _ \| | - *                             / __| | | | |_) | | - *                            | (__| |_| |  _ <| |___ - *                             \___|\___/|_| \_\_____| - * - * Copyright (C) 1998 - 2011, Daniel Stenberg, <daniel@haxx.se>, et al. - * - * This software is licensed as described in the file COPYING, which - * you should have received as part of this distribution. The terms - * are also available at http://curl.haxx.se/docs/copyright.html. - * - * You may opt to use, copy, modify, merge, publish, distribute and/or sell - * copies of the Software, and permit persons to whom the Software is - * furnished to do so, under the terms of the COPYING file. - * - * This software is distributed on an "AS IS" basis, WITHOUT WARRANTY OF ANY - * KIND, either express or implied. - * - ***************************************************************************/ -/* Example application source code using the multi socket interface to -   download many files at once. - -Written by Jeff Pohlmeyer - -Requires libevent and a (POSIX?) system that has mkfifo(). - -This is an adaptation of libcurl's "hipev.c" and libevent's "event-test.c" -sample programs. - -When running, the program creates the named pipe "hiper.fifo" - -Whenever there is input into the fifo, the program reads the input as a list -of URL's and creates some new easy handles to fetch each URL via the -curl_multi "hiper" API. - - -Thus, you can try a single URL: -  % echo http://www.yahoo.com > hiper.fifo - -Or a whole bunch of them: -  % cat my-url-list > hiper.fifo - -The fifo buffer is handled almost instantly, so you can even add more URL's -while the previous requests are still being downloaded. - -Note: -  For the sake of simplicity, URL length is limited to 1023 char's ! - -This is purely a demo app, all retrieved data is simply discarded by the write -callback. - -*/ - -#include <stdio.h> -#include <string.h> -#include <stdlib.h> -#include <sys/time.h> -#include <time.h> -#include <unistd.h> -#include <sys/poll.h> -#include <curl/curl.h> -#include <event.h> -#include <fcntl.h> -#include <sys/stat.h> -#include <errno.h> - - -#define MSG_OUT stdout /* Send info to stdout, change to stderr if you want */ - - -/* Global information, common to all connections */ -typedef struct _GlobalInfo { -  struct event fifo_event; -  struct event timer_event; -  CURLM *multi; -  int still_running; -  FILE* input; -} GlobalInfo; - - -/* Information associated with a specific easy handle */ -typedef struct _ConnInfo { -  CURL *easy; -  char *url; -  GlobalInfo *global; -  char error[CURL_ERROR_SIZE]; -} ConnInfo; - - -/* Information associated with a specific socket */ -typedef struct _SockInfo { -  curl_socket_t sockfd; -  CURL *easy; -  int action; -  long timeout; -  struct event ev; -  int evset; -  GlobalInfo *global; -} SockInfo; - - - -/* Update the event timer after curl_multi library calls */ -static int multi_timer_cb(CURLM *multi, long timeout_ms, GlobalInfo *g) -{ -  struct timeval timeout; -  (void)multi; /* unused */ - -  timeout.tv_sec = timeout_ms/1000; -  timeout.tv_usec = (timeout_ms%1000)*1000; -  fprintf(MSG_OUT, "multi_timer_cb: Setting timeout to %ld ms\n", timeout_ms); -  evtimer_add(&g->timer_event, &timeout); -  return 0; -} - -/* Die if we get a bad CURLMcode somewhere */ -static void mcode_or_die(const char *where, CURLMcode code) -{ -  if ( CURLM_OK != code ) { -    const char *s; -    switch (code) { -      case     CURLM_CALL_MULTI_PERFORM: s="CURLM_CALL_MULTI_PERFORM"; break; -      case     CURLM_BAD_HANDLE:         s="CURLM_BAD_HANDLE";         break; -      case     CURLM_BAD_EASY_HANDLE:    s="CURLM_BAD_EASY_HANDLE";    break; -      case     CURLM_OUT_OF_MEMORY:      s="CURLM_OUT_OF_MEMORY";      break; -      case     CURLM_INTERNAL_ERROR:     s="CURLM_INTERNAL_ERROR";     break; -      case     CURLM_UNKNOWN_OPTION:     s="CURLM_UNKNOWN_OPTION";     break; -      case     CURLM_LAST:               s="CURLM_LAST";               break; -      default: s="CURLM_unknown"; -        break; -    case     CURLM_BAD_SOCKET:         s="CURLM_BAD_SOCKET"; -      fprintf(MSG_OUT, "ERROR: %s returns %s\n", where, s); -      /* ignore this error */ -      return; -    } -    fprintf(MSG_OUT, "ERROR: %s returns %s\n", where, s); -    exit(code); -  } -} - - - -/* Check for completed transfers, and remove their easy handles */ -static void check_multi_info(GlobalInfo *g) -{ -  char *eff_url; -  CURLMsg *msg; -  int msgs_left; -  ConnInfo *conn; -  CURL *easy; -  CURLcode res; - -  fprintf(MSG_OUT, "REMAINING: %d\n", g->still_running); -  while ((msg = curl_multi_info_read(g->multi, &msgs_left))) { -    if (msg->msg == CURLMSG_DONE) { -      easy = msg->easy_handle; -      res = msg->data.result; -      curl_easy_getinfo(easy, CURLINFO_PRIVATE, &conn); -      curl_easy_getinfo(easy, CURLINFO_EFFECTIVE_URL, &eff_url); -      fprintf(MSG_OUT, "DONE: %s => (%d) %s\n", eff_url, res, conn->error); -      curl_multi_remove_handle(g->multi, easy); -      free(conn->url); -      curl_easy_cleanup(easy); -      free(conn); -    } -  } -} - - - -/* Called by libevent when we get action on a multi socket */ -static void event_cb(int fd, short kind, void *userp) -{ -  GlobalInfo *g = (GlobalInfo*) userp; -  CURLMcode rc; - -  int action = -    (kind & EV_READ ? CURL_CSELECT_IN : 0) | -    (kind & EV_WRITE ? CURL_CSELECT_OUT : 0); - -  rc = curl_multi_socket_action(g->multi, fd, action, &g->still_running); -  mcode_or_die("event_cb: curl_multi_socket_action", rc); - -  check_multi_info(g); -  if ( g->still_running <= 0 ) { -    fprintf(MSG_OUT, "last transfer done, kill timeout\n"); -    if (evtimer_pending(&g->timer_event, NULL)) { -      evtimer_del(&g->timer_event); -    } -  } -} - - - -/* Called by libevent when our timeout expires */ -static void timer_cb(int fd, short kind, void *userp) -{ -  GlobalInfo *g = (GlobalInfo *)userp; -  CURLMcode rc; -  (void)fd; -  (void)kind; - -  rc = curl_multi_socket_action(g->multi, -                                  CURL_SOCKET_TIMEOUT, 0, &g->still_running); -  mcode_or_die("timer_cb: curl_multi_socket_action", rc); -  check_multi_info(g); -} - - - -/* Clean up the SockInfo structure */ -static void remsock(SockInfo *f) -{ -  if (f) { -    if (f->evset) -      event_del(&f->ev); -    free(f); -  } -} - - - -/* Assign information to a SockInfo structure */ -static void setsock(SockInfo*f, curl_socket_t s, CURL*e, int act, GlobalInfo*g) -{ -  int kind = -     (act&CURL_POLL_IN?EV_READ:0)|(act&CURL_POLL_OUT?EV_WRITE:0)|EV_PERSIST; - -  f->sockfd = s; -  f->action = act; -  f->easy = e; -  if (f->evset) -    event_del(&f->ev); -  event_set(&f->ev, f->sockfd, kind, event_cb, g); -  f->evset=1; -  event_add(&f->ev, NULL); -} - - - -/* Initialize a new SockInfo structure */ -static void addsock(curl_socket_t s, CURL *easy, int action, GlobalInfo *g) { -  SockInfo *fdp = calloc(sizeof(SockInfo), 1); - -  fdp->global = g; -  setsock(fdp, s, easy, action, g); -  curl_multi_assign(g->multi, s, fdp); -} - -/* CURLMOPT_SOCKETFUNCTION */ -static int sock_cb(CURL *e, curl_socket_t s, int what, void *cbp, void *sockp) -{ -  GlobalInfo *g = (GlobalInfo*) cbp; -  SockInfo *fdp = (SockInfo*) sockp; -  const char *whatstr[]={ "none", "IN", "OUT", "INOUT", "REMOVE" }; - -  fprintf(MSG_OUT, -          "socket callback: s=%d e=%p what=%s ", s, e, whatstr[what]); -  if (what == CURL_POLL_REMOVE) { -    fprintf(MSG_OUT, "\n"); -    remsock(fdp); -  } -  else { -    if (!fdp) { -      fprintf(MSG_OUT, "Adding data: %s\n", whatstr[what]); -      addsock(s, e, what, g); -    } -    else { -      fprintf(MSG_OUT, -              "Changing action from %s to %s\n", -              whatstr[fdp->action], whatstr[what]); -      setsock(fdp, s, e, what, g); -    } -  } -  return 0; -} - - - -/* CURLOPT_WRITEFUNCTION */ -static size_t write_cb(void *ptr, size_t size, size_t nmemb, void *data) -{ -  size_t realsize = size * nmemb; -  ConnInfo *conn = (ConnInfo*) data; -  (void)ptr; -  (void)conn; -  return realsize; -} - - -/* CURLOPT_PROGRESSFUNCTION */ -static int prog_cb (void *p, double dltotal, double dlnow, double ult, -                    double uln) -{ -  ConnInfo *conn = (ConnInfo *)p; -  (void)ult; -  (void)uln; - -  fprintf(MSG_OUT, "Progress: %s (%g/%g)\n", conn->url, dlnow, dltotal); -  return 0; -} - - -/* Create a new easy handle, and add it to the global curl_multi */ -static void new_conn(char *url, GlobalInfo *g ) -{ -  ConnInfo *conn; -  CURLMcode rc; - -  conn = calloc(1, sizeof(ConnInfo)); -  memset(conn, 0, sizeof(ConnInfo)); -  conn->error[0]='\0'; - -  conn->easy = curl_easy_init(); -  if (!conn->easy) { -    fprintf(MSG_OUT, "curl_easy_init() failed, exiting!\n"); -    exit(2); -  } -  conn->global = g; -  conn->url = strdup(url); -  curl_easy_setopt(conn->easy, CURLOPT_URL, conn->url); -  curl_easy_setopt(conn->easy, CURLOPT_WRITEFUNCTION, write_cb); -  curl_easy_setopt(conn->easy, CURLOPT_WRITEDATA, &conn); -  curl_easy_setopt(conn->easy, CURLOPT_VERBOSE, 1L); -  curl_easy_setopt(conn->easy, CURLOPT_ERRORBUFFER, conn->error); -  curl_easy_setopt(conn->easy, CURLOPT_PRIVATE, conn); -  curl_easy_setopt(conn->easy, CURLOPT_NOPROGRESS, 0L); -  curl_easy_setopt(conn->easy, CURLOPT_PROGRESSFUNCTION, prog_cb); -  curl_easy_setopt(conn->easy, CURLOPT_PROGRESSDATA, conn); -  fprintf(MSG_OUT, -          "Adding easy %p to multi %p (%s)\n", conn->easy, g->multi, url); -  rc = curl_multi_add_handle(g->multi, conn->easy); -  mcode_or_die("new_conn: curl_multi_add_handle", rc); - -  /* note that the add_handle() will set a time-out to trigger very soon so -     that the necessary socket_action() call will be called by this app */ -} - -/* This gets called whenever data is received from the fifo */ -static void fifo_cb(int fd, short event, void *arg) -{ -  char s[1024]; -  long int rv=0; -  int n=0; -  GlobalInfo *g = (GlobalInfo *)arg; -  (void)fd; /* unused */ -  (void)event; /* unused */ - -  do { -    s[0]='\0'; -    rv=fscanf(g->input, "%1023s%n", s, &n); -    s[n]='\0'; -    if ( n && s[0] ) { -      new_conn(s,arg);  /* if we read a URL, go get it! */ -    } else break; -  } while ( rv != EOF); -} - -/* Create a named pipe and tell libevent to monitor it */ -static int init_fifo (GlobalInfo *g) -{ -  struct stat st; -  static const char *fifo = "hiper.fifo"; -  curl_socket_t sockfd; - -  fprintf(MSG_OUT, "Creating named pipe \"%s\"\n", fifo); -  if (lstat (fifo, &st) == 0) { -    if ((st.st_mode & S_IFMT) == S_IFREG) { -      errno = EEXIST; -      perror("lstat"); -      exit (1); -    } -  } -  unlink(fifo); -  if (mkfifo (fifo, 0600) == -1) { -    perror("mkfifo"); -    exit (1); -  } -  sockfd = open(fifo, O_RDWR | O_NONBLOCK, 0); -  if (sockfd == -1) { -    perror("open"); -    exit (1); -  } -  g->input = fdopen(sockfd, "r"); - -  fprintf(MSG_OUT, "Now, pipe some URL's into > %s\n", fifo); -  event_set(&g->fifo_event, sockfd, EV_READ | EV_PERSIST, fifo_cb, g); -  event_add(&g->fifo_event, NULL); -  return (0); -} - -int main(int argc, char **argv) -{ -  GlobalInfo g; -  (void)argc; -  (void)argv; - -  memset(&g, 0, sizeof(GlobalInfo)); -  event_init(); -  init_fifo(&g); -  g.multi = curl_multi_init(); -  evtimer_set(&g.timer_event, timer_cb, &g); - -  /* setup the generic multi interface options we want */ -  curl_multi_setopt(g.multi, CURLMOPT_SOCKETFUNCTION, sock_cb); -  curl_multi_setopt(g.multi, CURLMOPT_SOCKETDATA, &g); -  curl_multi_setopt(g.multi, CURLMOPT_TIMERFUNCTION, multi_timer_cb); -  curl_multi_setopt(g.multi, CURLMOPT_TIMERDATA, &g); - -  /* we don't call any curl_multi_socket*() function yet as we have no handles -     added! */ - -  event_dispatch(); -  curl_multi_cleanup(g.multi); -  return 0; -}  | 
