Deactivate curl-test

1 files changed, 383 insertions, 0 deletions

diff --git a/deactivated/test-curl/test/src/example.c b/deactivated/test-curl/test/src/example.c
new file mode 100644
index 0000000..f5496af
--- /dev/null
+++ b/deactivated/test-curl/test/src/example.c
@@ -0,0 +1,383 @@
+#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 <event2/event.h>
+#include <fcntl.h>
+#include <sys/stat.h>
+#include <errno.h>
+ 
+ 
+#define MSG_OUT stdout  
+ 
+ 
+/* Global information, common to all connections */ 
+typedef struct _GlobalInfo
+{
+  struct event_base *evbase;
+  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_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_free(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_free(f->ev);
+  f->ev = event_new(g->evbase, 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 const char *fifo = "hiper.fifo";
+static int init_fifo(GlobalInfo *g)
+{
+  struct stat st;
+  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);
+  g->fifo_event = event_new(g->evbase, sockfd, EV_READ|EV_PERSIST, fifo_cb, g);
+  event_add(g->fifo_event, NULL);
+  return (0);
+}
+ 
+static void clean_fifo(GlobalInfo *g)
+{
+    event_free(g->fifo_event);
+    fclose(g->input);
+    unlink(fifo);
+}
+ 
+int main(int argc, char **argv)
+{
+  GlobalInfo g;
+  (void)argc;
+  (void)argv;
+ 
+  memset(&g, 0, sizeof(GlobalInfo));
+  g.evbase = event_base_new();
+  init_fifo(&g);
+  g.multi = curl_multi_init();
+  g.timer_event = evtimer_new(g.evbase, 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_base_dispatch(g.evbase);
+ 
+  /* this, of course, won't get called since only way to stop this program is
+     via ctrl-C, but it is here to show how cleanup /would/ be done. */ 
+  clean_fifo(&g);
+  event_free(g.timer_event);
+  event_base_free(g.evbase);
+  curl_multi_cleanup(g.multi);
+  return 0;
+}