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From 06b79081237eff3ebd8719af55265855d446f3e6 Mon Sep 17 00:00:00 2001
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From: Richard Jones <rjones@redhat.com>
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Date: Thu, 11 Jun 2015 11:40:25 +0200
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Subject: [PATCH 25/30] block.curl: adding 'timeout' option
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Message-id: <1434022828-13037-19-git-send-email-rjones@redhat.com>
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Patchwork-id: 65851
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O-Subject: [RHEL-7.2 qemu-kvm v3 PATCH 18/21] block.curl: adding 'timeout' option
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Bugzilla: 1226684
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RH-Acked-by: Miroslav Rezanina <mrezanin@redhat.com>
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RH-Acked-by: Stefan Hajnoczi <stefanha@redhat.com>
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RH-Acked-by: Laszlo Ersek <lersek@redhat.com>
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From: Daniel Henrique Barboza <danielhb@linux.vnet.ibm.com>
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The curl hardcoded timeout (5 seconds) sometimes is not long
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enough depending on the remote server configuration and network
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traffic. The user should be able to set how much long he is
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willing to wait for the connection.
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Adding a new option to set this timeout gives the user this
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flexibility. The previous default timeout of 5 seconds will be
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used if this option is not present.
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Reviewed-by: Fam Zheng <famz@redhat.com>
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Signed-off-by: Daniel Henrique Barboza <danielhb@linux.vnet.ibm.com>
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Reviewed-by: Benoit Canet <benoit.canet@nodalink.com>
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Tested-by: Richard W.M. Jones <rjones@redhat.com>
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Signed-off-by: Stefan Hajnoczi <stefanha@redhat.com>
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Upstream-status: 212aefaa53d142baa9a22f5aadd2e72eb916c0c0
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Note this intentionally omits the documentation changes in
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'qemu-options.hx' from the upstream patch.
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Signed-off-by: Miroslav Rezanina <mrezanin@redhat.com>
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---
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 block/curl.c | 13 ++++++++++++-
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 1 file changed, 12 insertions(+), 1 deletion(-)
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diff --git a/block/curl.c b/block/curl.c
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index 2486449..1f1df4f 100644
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--- a/block/curl.c
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+++ b/block/curl.c
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@@ -63,6 +63,7 @@ static CURLMcode __curl_multi_socket_action(CURLM *multi_handle,
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 #define CURL_NUM_ACB    8
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 #define SECTOR_SIZE     512
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 #define READ_AHEAD_DEFAULT (256 * 1024)
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+#define CURL_TIMEOUT_DEFAULT 5
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 #define FIND_RET_NONE   0
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 #define FIND_RET_OK     1
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@@ -71,6 +72,7 @@ static CURLMcode __curl_multi_socket_action(CURLM *multi_handle,
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 #define CURL_BLOCK_OPT_URL       "url"
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 #define CURL_BLOCK_OPT_READAHEAD "readahead"
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 #define CURL_BLOCK_OPT_SSLVERIFY "sslverify"
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+#define CURL_BLOCK_OPT_TIMEOUT "timeout"
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 struct BDRVCURLState;
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@@ -109,6 +111,7 @@ typedef struct BDRVCURLState {
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     char *url;
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     size_t readahead_size;
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     bool sslverify;
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+    int timeout;
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     bool accept_range;
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 } BDRVCURLState;
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@@ -379,7 +382,7 @@ static CURLState *curl_init_state(BDRVCURLState *s)
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         curl_easy_setopt(state->curl, CURLOPT_URL, s->url);
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         curl_easy_setopt(state->curl, CURLOPT_SSL_VERIFYPEER,
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                          (long) s->sslverify);
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-        curl_easy_setopt(state->curl, CURLOPT_TIMEOUT, 5);
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+        curl_easy_setopt(state->curl, CURLOPT_TIMEOUT, s->timeout);
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         curl_easy_setopt(state->curl, CURLOPT_WRITEFUNCTION,
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                          (void *)curl_read_cb);
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         curl_easy_setopt(state->curl, CURLOPT_WRITEDATA, (void *)state);
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@@ -443,6 +446,11 @@ static QemuOptsList runtime_opts = {
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             .type = QEMU_OPT_BOOL,
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             .help = "Verify SSL certificate"
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         },
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+        {
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+            .name = CURL_BLOCK_OPT_TIMEOUT,
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+            .type = QEMU_OPT_NUMBER,
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+            .help = "Curl timeout"
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+        },
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         { /* end of list */ }
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     },
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 };
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@@ -475,6 +483,9 @@ static int curl_open(BlockDriverState *bs, QDict *options, int flags,
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         goto out_noclean;
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     }
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+    s->timeout = qemu_opt_get_number(opts, CURL_BLOCK_OPT_TIMEOUT,
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+                                     CURL_TIMEOUT_DEFAULT);
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+
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     s->sslverify = qemu_opt_get_bool(opts, CURL_BLOCK_OPT_SSLVERIFY, true);
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     file = qemu_opt_get(opts, CURL_BLOCK_OPT_URL);
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-- 
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1.8.3.1
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