305 lines
8.1 KiB
C
305 lines
8.1 KiB
C
/***************************************************************************
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* _ _ ____ _
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* Project ___| | | | _ \| |
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* / __| | | | |_) | |
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* | (__| |_| | _ <| |___
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* \___|\___/|_| \_\_____|
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*
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* Copyright (C) Daniel Stenberg, <daniel@haxx.se>, et al.
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*
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* This software is licensed as described in the file COPYING, which
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* you should have received as part of this distribution. The terms
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* are also available at https://curl.se/docs/copyright.html.
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*
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* You may opt to use, copy, modify, merge, publish, distribute and/or sell
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* copies of the Software, and permit persons to whom the Software is
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* furnished to do so, under the terms of the COPYING file.
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*
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* This software is distributed on an "AS IS" basis, WITHOUT WARRANTY OF ANY
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* KIND, either express or implied.
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*
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* SPDX-License-Identifier: curl
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*
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***************************************************************************/
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/* <DESC>
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* Multiplexed HTTP/2 uploads over a single connection
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* </DESC>
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*/
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#include <stdio.h>
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#include <stdlib.h>
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#include <string.h>
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#include <fcntl.h>
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#include <sys/stat.h>
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#include <errno.h>
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/* somewhat unix-specific */
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#include <sys/time.h>
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#include <unistd.h>
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/* curl stuff */
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#include <curl/curl.h>
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#include <curl/mprintf.h>
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#ifndef CURLPIPE_MULTIPLEX
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/* This little trick will just make sure that we do not enable pipelining for
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libcurls old enough to not have this symbol. It is _not_ defined to zero in
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a recent libcurl header. */
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#define CURLPIPE_MULTIPLEX 0
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#endif
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#define NUM_HANDLES 1000
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struct input {
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FILE *in;
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size_t bytes_read; /* count up */
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CURL *hnd;
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int num;
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};
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static
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void dump(const char *text, int num, unsigned char *ptr, size_t size,
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char nohex)
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{
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size_t i;
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size_t c;
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unsigned int width = 0x10;
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if(nohex)
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/* without the hex output, we can fit more on screen */
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width = 0x40;
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fprintf(stderr, "%d %s, %lu bytes (0x%lx)\n",
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num, text, (unsigned long)size, (unsigned long)size);
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for(i = 0; i<size; i += width) {
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fprintf(stderr, "%4.4lx: ", (unsigned long)i);
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if(!nohex) {
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/* hex not disabled, show it */
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for(c = 0; c < width; c++)
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if(i + c < size)
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fprintf(stderr, "%02x ", ptr[i + c]);
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else
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fputs(" ", stderr);
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}
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for(c = 0; (c < width) && (i + c < size); c++) {
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/* check for 0D0A; if found, skip past and start a new line of output */
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if(nohex && (i + c + 1 < size) && ptr[i + c] == 0x0D &&
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ptr[i + c + 1] == 0x0A) {
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i += (c + 2 - width);
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break;
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}
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fprintf(stderr, "%c",
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(ptr[i + c] >= 0x20) && (ptr[i + c]<0x80)?ptr[i + c]:'.');
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/* check again for 0D0A, to avoid an extra \n if it's at width */
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if(nohex && (i + c + 2 < size) && ptr[i + c + 1] == 0x0D &&
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ptr[i + c + 2] == 0x0A) {
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i += (c + 3 - width);
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break;
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}
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}
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fputc('\n', stderr); /* newline */
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}
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}
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static
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int my_trace(CURL *handle, curl_infotype type,
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char *data, size_t size,
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void *userp)
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{
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char timebuf[60];
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const char *text;
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struct input *i = (struct input *)userp;
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int num = i->num;
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static time_t epoch_offset;
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static int known_offset;
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struct timeval tv;
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time_t secs;
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struct tm *now;
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(void)handle; /* prevent compiler warning */
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gettimeofday(&tv, NULL);
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if(!known_offset) {
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epoch_offset = time(NULL) - tv.tv_sec;
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known_offset = 1;
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}
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secs = epoch_offset + tv.tv_sec;
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now = localtime(&secs); /* not thread safe but we do not care */
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curl_msnprintf(timebuf, sizeof(timebuf), "%02d:%02d:%02d.%06ld",
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now->tm_hour, now->tm_min, now->tm_sec, (long)tv.tv_usec);
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switch(type) {
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case CURLINFO_TEXT:
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fprintf(stderr, "%s [%d] Info: %s", timebuf, num, data);
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/* FALLTHROUGH */
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default: /* in case a new one is introduced to shock us */
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return 0;
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case CURLINFO_HEADER_OUT:
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text = "=> Send header";
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break;
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case CURLINFO_DATA_OUT:
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text = "=> Send data";
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break;
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case CURLINFO_SSL_DATA_OUT:
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text = "=> Send SSL data";
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break;
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case CURLINFO_HEADER_IN:
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text = "<= Recv header";
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break;
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case CURLINFO_DATA_IN:
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text = "<= Recv data";
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break;
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case CURLINFO_SSL_DATA_IN:
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text = "<= Recv SSL data";
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break;
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}
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dump(text, num, (unsigned char *)data, size, 1);
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return 0;
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}
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static size_t read_callback(char *ptr, size_t size, size_t nmemb, void *userp)
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{
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struct input *i = userp;
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size_t retcode = fread(ptr, size, nmemb, i->in);
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i->bytes_read += retcode;
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return retcode;
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}
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static void setup(struct input *i, int num, const char *upload)
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{
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FILE *out;
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char url[256];
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char filename[128];
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struct stat file_info;
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curl_off_t uploadsize;
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CURL *hnd;
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hnd = i->hnd = curl_easy_init();
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i->num = num;
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curl_msnprintf(filename, 128, "dl-%d", num);
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out = fopen(filename, "wb");
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if(!out) {
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fprintf(stderr, "error: could not open file %s for writing: %s\n", upload,
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strerror(errno));
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exit(1);
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}
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curl_msnprintf(url, 256, "https://localhost:8443/upload-%d", num);
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/* get the file size of the local file */
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if(stat(upload, &file_info)) {
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fprintf(stderr, "error: could not stat file %s: %s\n", upload,
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strerror(errno));
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exit(1);
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}
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uploadsize = file_info.st_size;
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i->in = fopen(upload, "rb");
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if(!i->in) {
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fprintf(stderr, "error: could not open file %s for reading: %s\n", upload,
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strerror(errno));
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exit(1);
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}
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/* write to this file */
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curl_easy_setopt(hnd, CURLOPT_WRITEDATA, out);
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/* we want to use our own read function */
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curl_easy_setopt(hnd, CURLOPT_READFUNCTION, read_callback);
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/* read from this file */
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curl_easy_setopt(hnd, CURLOPT_READDATA, i);
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/* provide the size of the upload */
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curl_easy_setopt(hnd, CURLOPT_INFILESIZE_LARGE, uploadsize);
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/* send in the URL to store the upload as */
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curl_easy_setopt(hnd, CURLOPT_URL, url);
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/* upload please */
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curl_easy_setopt(hnd, CURLOPT_UPLOAD, 1L);
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/* please be verbose */
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curl_easy_setopt(hnd, CURLOPT_VERBOSE, 1L);
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curl_easy_setopt(hnd, CURLOPT_DEBUGFUNCTION, my_trace);
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curl_easy_setopt(hnd, CURLOPT_DEBUGDATA, i);
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/* HTTP/2 please */
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curl_easy_setopt(hnd, CURLOPT_HTTP_VERSION, CURL_HTTP_VERSION_2_0);
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/* we use a self-signed test server, skip verification during debugging */
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curl_easy_setopt(hnd, CURLOPT_SSL_VERIFYPEER, 0L);
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curl_easy_setopt(hnd, CURLOPT_SSL_VERIFYHOST, 0L);
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#if (CURLPIPE_MULTIPLEX > 0)
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/* wait for pipe connection to confirm */
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curl_easy_setopt(hnd, CURLOPT_PIPEWAIT, 1L);
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#endif
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}
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/*
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* Upload all files over HTTP/2, using the same physical connection!
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*/
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int main(int argc, char **argv)
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{
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struct input trans[NUM_HANDLES];
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CURLM *multi_handle;
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int i;
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int still_running = 0; /* keep number of running handles */
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const char *filename = "index.html";
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int num_transfers;
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if(argc > 1) {
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/* if given a number, do that many transfers */
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num_transfers = atoi(argv[1]);
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if(!num_transfers || (num_transfers > NUM_HANDLES))
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num_transfers = 3; /* a suitable low default */
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if(argc > 2)
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/* if given a file name, upload this! */
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filename = argv[2];
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}
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else
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num_transfers = 3;
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/* init a multi stack */
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multi_handle = curl_multi_init();
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for(i = 0; i<num_transfers; i++) {
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setup(&trans[i], i, filename);
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/* add the individual transfer */
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curl_multi_add_handle(multi_handle, trans[i].hnd);
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}
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curl_multi_setopt(multi_handle, CURLMOPT_PIPELINING, CURLPIPE_MULTIPLEX);
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/* We do HTTP/2 so let's stick to one connection per host */
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curl_multi_setopt(multi_handle, CURLMOPT_MAX_HOST_CONNECTIONS, 1L);
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do {
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CURLMcode mc = curl_multi_perform(multi_handle, &still_running);
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if(still_running)
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/* wait for activity, timeout or "nothing" */
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mc = curl_multi_poll(multi_handle, NULL, 0, 1000, NULL);
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if(mc)
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break;
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} while(still_running);
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curl_multi_cleanup(multi_handle);
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for(i = 0; i<num_transfers; i++) {
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curl_multi_remove_handle(multi_handle, trans[i].hnd);
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curl_easy_cleanup(trans[i].hnd);
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}
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return 0;
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}
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