Revert "Stop publish examples to mongoose repo"

This reverts commit 1a17e17c462bdd4e1d26d8742f8b7087273e04c2.

PUBLISHED_FROM=80028de308c9a021955d1425d2bfee8feb85f193

examples/big_upload/Makefile

@@ -0,0 +1,3 @@
+PROG = big_upload
+MODULE_CFLAGS = -DMG_ENABLE_HTTP_STREAMING_MULTIPART
+include ../examples.mk

examples/big_upload/big_upload.c

@@ -0,0 +1,112 @@
+// Copyright (c) 2015 Cesanta Software Limited
+// All rights reserved
+//
+// This example demonstrates how to handle very large requests without keeping
+// them in memory.
+
+#include <stdio.h>
+#include <string.h>
+#include <stdlib.h>
+#include "mongoose.h"
+
+static const char *s_http_port = "8000";
+
+struct file_writer_data {
+  FILE *fp;
+  size_t bytes_written;
+};
+
+static void handle_request(struct mg_connection *nc) {
+  // This handler gets for all endpoints but /upload
+  mg_printf(nc, "%s",
+            "HTTP/1.1 200 OK\r\n"
+            "Content-Type: text/html\r\n"
+            "Connection: close\r\n"
+            "\r\n"
+            "<html><body>Upload example."
+            "<form method=\"POST\" action=\"/upload\" "
+            "  enctype=\"multipart/form-data\">"
+            "<input type=\"file\" name=\"file\" /> <br/>"
+            "<input type=\"submit\" value=\"Upload\" />"
+            "</form></body></html>");
+  nc->flags |= MG_F_SEND_AND_CLOSE;
+}
+
+static void handle_upload(struct mg_connection *nc, int ev, void *p) {
+  struct file_writer_data *data = (struct file_writer_data *) nc->user_data;
+  struct mg_http_multipart_part *mp = (struct mg_http_multipart_part *) p;
+
+  switch (ev) {
+    case MG_EV_HTTP_PART_BEGIN: {
+      if (data == NULL) {
+        data = calloc(1, sizeof(struct file_writer_data));
+        data->fp = tmpfile();
+        data->bytes_written = 0;
+
+        if (data->fp == NULL) {
+          mg_printf(nc, "%s",
+                    "HTTP/1.1 500 Failed to open a file\r\n"
+                    "Content-Length: 0\r\n\r\n");
+          nc->flags |= MG_F_SEND_AND_CLOSE;
+          return;
+        }
+        nc->user_data = (void *) data;
+      }
+      break;
+    }
+    case MG_EV_HTTP_PART_DATA: {
+      if (fwrite(mp->data.p, 1, mp->data.len, data->fp) != mp->data.len) {
+        mg_printf(nc, "%s",
+                  "HTTP/1.1 500 Failed to write to a file\r\n"
+                  "Content-Length: 0\r\n\r\n");
+        nc->flags |= MG_F_SEND_AND_CLOSE;
+        return;
+      }
+      data->bytes_written += mp->data.len;
+      break;
+    }
+    case MG_EV_HTTP_PART_END: {
+      mg_printf(nc,
+                "HTTP/1.1 200 OK\r\n"
+                "Content-Type: text/plain\r\n"
+                "Connection: close\r\n\r\n"
+                "Written %ld of POST data to a temp file\n\n",
+                (long) ftell(data->fp));
+      nc->flags |= MG_F_SEND_AND_CLOSE;
+      fclose(data->fp);
+      free(data);
+      nc->user_data = NULL;
+      break;
+    }
+  }
+}
+
+static void ev_handler(struct mg_connection *nc, int ev, void *ev_data) {
+  (void) ev_data;
+  switch (ev) {
+    case MG_EV_HTTP_REQUEST:
+      // Invoked when the full HTTP request is in the buffer (including body).
+      handle_request(nc);
+      break;
+  }
+}
+
+int main(void) {
+  struct mg_mgr mgr;
+  struct mg_connection *nc;
+
+  mg_mgr_init(&mgr, NULL);
+  nc = mg_bind(&mgr, s_http_port, ev_handler);
+
+  mg_register_http_endpoint(nc, "/upload", handle_upload);
+  // Set up HTTP server parameters
+  mg_set_protocol_http_websocket(nc);
+
+  printf("Starting web server on port %s\n", s_http_port);
+  for (;;) {
+    mg_mgr_poll(&mgr, 1000);
+  }
+  mg_mgr_free(&mgr);
+
+  return 0;
+}