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php curl tls 版本_Swoole 4.4——支援 CURL 協程化

阿新 • • 發佈：2020-12-31

技術標籤：php curl tls 版本

在4.4之前的版本中，Swoole一直不支援CURL協程化，在程式碼中無法使用curl。由於curl使用了libcurl庫實現，無法直接hook它的socket，4.4版本使用SwooleCoroutineHttpClient模擬實現了curl的API，並在底層替換了curl_init等函式的C Handler。

提示

  • CURL Hook的特性尚處於試驗階段，請勿在生產環境中直接使用
  • 暫不支援檔案上傳、CURL Multi
  • 仍然需要依賴curl，請務必安裝curl擴充套件

支援的特性列表

  • GET/POST
  • Header
  • Cookie
  • Https
經過驗證 Guzzle CURL
完全可以使用

開啟

使用Runtime::enableCoroutine來開啟CURL Hook。

預設不開啟 CURL Hook 
SwooleRuntime::enableCoroutine(SWOOLE_HOOK_ALL);
SwooleRuntime::enableCoroutine(SWOOLE_HOOK_CURL);

使用

$n = 10;
while($n--) {
    go(function () {
        $ch = curl_init();
        curl_setopt($ch, CURLOPT_URL, "http://www.xinhuanet.com/");
        curl_setopt($ch, CURLOPT_RETURNTRANSFER, 1);
        curl_setopt($ch, CURLOPT_HEADER, 0);
        $output = curl_exec($ch);
        if ($output === FALSE) {
            echo "CURL Error:" . curl_error($ch);
        }
        curl_close($ch);
        echo strlen($output) . " bytesn";
    });
}
要將上面兩段程式碼合併到一個檔案中執行

執行結果

[email protected]:~/swoole-src/examples$ time php curl.php
177173 bytes
177173 bytes
177173 bytes
177173 bytes
177173 bytes
177173 bytes
177173 bytes
177173 bytes
177173 bytes
177173 bytes

real    0m0.534s
user    0m0.031s
sys     0m0.297s

可以看到整個程式是並行的，程序沒有任何阻塞。

strace 跟蹤

使用strace

跟蹤發現，所有系統呼叫均變成epoll+socket的非同步非阻塞呼叫了。

epoll_create(512)                       = 3
mmap(NULL, 258048, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7fc038a50000
mmap(NULL, 2101248, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7fc028910000
socket(AF_INET, SOCK_STREAM|SOCK_CLOEXEC, IPPROTO_IP) = 4
fcntl(4, F_GETFL)                       = 0x80002 (flags O_RDWR|O_CLOEXEC)
fcntl(4, F_SETFL, O_RDWR|O_NONBLOCK|O_CLOEXEC) = 0
setsockopt(4, SOL_TCP, TCP_NODELAY, [1], 4) = 0
pipe([5, 6])                            = 0
fcntl(5, F_GETFL)                       = 0 (flags O_RDONLY)
fcntl(5, F_SETFL, O_RDONLY|O_NONBLOCK)  = 0
fcntl(6, F_GETFL)                       = 0x1 (flags O_WRONLY)
fcntl(6, F_SETFL, O_WRONLY|O_NONBLOCK)  = 0
epoll_ctl(3, EPOLL_CTL_ADD, 5, {EPOLLIN, {u32=5, u64=34359738373}}) = 0
mmap(NULL, 8392704, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7fc028100000
mprotect(0x7fc028101000, 8388608, PROT_READ|PROT_WRITE) = 0
clone(child_stack=0x7fc0288ffb70, flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, parent_tidptr=0x7fc0289009d0, tls=0x7fc028900700, child_tidptr=0x7fc0289009d0) = 55
mmap(NULL, 8392704, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7fc0237f0000
mprotect(0x7fc0237f1000, 8388608, PROT_READ|PROT_WRITE) = 0
clone(child_stack=0x7fc023fefb70, flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, parent_tidptr=0x7fc023ff09d0, tls=0x7fc023ff0700, child_tidptr=0x7fc023ff09d0) = 56
mmap(NULL, 8392704, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7fc022fe0000
mprotect(0x7fc022fe1000, 8388608, PROT_READ|PROT_WRITE) = 0
clone(child_stack=0x7fc0237dfb70, flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, parent_tidptr=0x7fc0237e09d0, tls=0x7fc0237e0700, child_tidptr=0x7fc0237e09d0) = 57
mmap(NULL, 8392704, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7fc0227d0000
mprotect(0x7fc0227d1000, 8388608, PROT_READ|PROT_WRITE) = 0
clone(child_stack=0x7fc022fcfb70, flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, parent_tidptr=0x7fc022fd09d0, tls=0x7fc022fd0700, child_tidptr=0x7fc022fd09d0) = 58
futex(0x7fffd9e01ce0, FUTEX_WAKE_PRIVATE, 1) = 1
clock_gettime(CLOCK_MONOTONIC, {tv_sec=232, tv_nsec=513190000}) = 0
clock_gettime(CLOCK_MONOTONIC, {tv_sec=232, tv_nsec=513408000}) = 0
mmap(NULL, 2101248, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7fc0225c0000
socket(AF_INET, SOCK_STREAM|SOCK_CLOEXEC, IPPROTO_IP) = 8
fcntl(8, F_GETFL)                       = 0x80002 (flags O_RDWR|O_CLOEXEC)
fcntl(8, F_SETFL, O_RDWR|O_NONBLOCK|O_CLOEXEC) = 0
setsockopt(8, SOL_TCP, TCP_NODELAY, [1], 4) = 0
futex(0x7fffd9e01ce0, FUTEX_WAKE_PRIVATE, 1) = 1
clock_gettime(CLOCK_MONOTONIC, {tv_sec=232, tv_nsec=514359000}) = 0
mmap(NULL, 2101248, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7fc0223b0000
socket(AF_INET, SOCK_STREAM|SOCK_CLOEXEC, IPPROTO_IP) = 10
fcntl(10, F_GETFL)                      = 0x80002 (flags O_RDWR|O_CLOEXEC)
fcntl(10, F_SETFL, O_RDWR|O_NONBLOCK|O_CLOEXEC) = 0
setsockopt(10, SOL_TCP, TCP_NODELAY, [1], 4) = 0
futex(0x7fffd9e01ce0, FUTEX_WAKE_PRIVATE, 1) = 1
clock_gettime(CLOCK_MONOTONIC, {tv_sec=232, tv_nsec=515961000}) = 0
mmap(NULL, 2101248, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7fc0221a0000
socket(AF_INET, SOCK_STREAM|SOCK_CLOEXEC, IPPROTO_IP) = 9
fcntl(9, F_GETFL)                       = 0x80002 (flags O_RDWR|O_CLOEXEC)
fcntl(9, F_SETFL, O_RDWR|O_NONBLOCK|O_CLOEXEC) = 0
setsockopt(9, SOL_TCP, TCP_NODELAY, [1], 4) = 0
futex(0x7fffd9e01ce4, FUTEX_WAKE_PRIVATE, 1) = 1
clock_gettime(CLOCK_MONOTONIC, {tv_sec=232, tv_nsec=517822000}) = 0
mmap(NULL, 2101248, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7fc021f90000
socket(AF_INET, SOCK_STREAM|SOCK_CLOEXEC, IPPROTO_IP) = 7
fcntl(7, F_GETFL)                       = 0x80002 (flags O_RDWR|O_CLOEXEC)
fcntl(7, F_SETFL, O_RDWR|O_NONBLOCK|O_CLOEXEC) = 0
setsockopt(7, SOL_TCP, TCP_NODELAY, [1], 4) = 0
clock_gettime(CLOCK_MONOTONIC, {tv_sec=232, tv_nsec=520138000}) = 0
mmap(NULL, 2101248, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7fc021b60000
socket(AF_INET, SOCK_STREAM|SOCK_CLOEXEC, IPPROTO_IP) = 11
fcntl(11, F_GETFL)                      = 0x80002 (flags O_RDWR|O_CLOEXEC)
fcntl(11, F_SETFL, O_RDWR|O_NONBLOCK|O_CLOEXEC) = 0
setsockopt(11, SOL_TCP, TCP_NODELAY, [1], 4) = 0
clock_gettime(CLOCK_MONOTONIC, {tv_sec=232, tv_nsec=521400000}) = 0
mmap(NULL, 2101248, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7fc021950000
socket(AF_INET, SOCK_STREAM|SOCK_CLOEXEC, IPPROTO_IP) = 12
fcntl(12, F_GETFL)                      = 0x80002 (flags O_RDWR|O_CLOEXEC)
fcntl(12, F_SETFL, O_RDWR|O_NONBLOCK|O_CLOEXEC) = 0
setsockopt(12, SOL_TCP, TCP_NODELAY, [1], 4) = 0
clock_gettime(CLOCK_MONOTONIC, {tv_sec=232, tv_nsec=523446000}) = 0
mmap(NULL, 2101248, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7fc021530000
socket(AF_INET, SOCK_STREAM|SOCK_CLOEXEC, IPPROTO_IP) = 17
fcntl(17, F_GETFL)                      = 0x80002 (flags O_RDWR|O_CLOEXEC)
fcntl(17, F_SETFL, O_RDWR|O_NONBLOCK|O_CLOEXEC) = 0
setsockopt(17, SOL_TCP, TCP_NODELAY, [1], 4) = 0
clock_gettime(CLOCK_MONOTONIC, {tv_sec=232, tv_nsec=524631000}) = 0
mmap(NULL, 2101248, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7fc021320000
socket(AF_INET, SOCK_STREAM|SOCK_CLOEXEC, IPPROTO_IP) = 18
fcntl(18, F_GETFL)                      = 0x80002 (flags O_RDWR|O_CLOEXEC)
fcntl(18, F_SETFL, O_RDWR|O_NONBLOCK|O_CLOEXEC) = 0
setsockopt(18, SOL_TCP, TCP_NODELAY, [1], 4) = 0
clock_gettime(CLOCK_MONOTONIC, {tv_sec=232, tv_nsec=525903000}) = 0
mmap(NULL, 2101248, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7fc021110000
socket(AF_INET, SOCK_STREAM|SOCK_CLOEXEC, IPPROTO_IP) = 19
fcntl(19, F_GETFL)                      = 0x80002 (flags O_RDWR|O_CLOEXEC)
fcntl(19, F_SETFL, O_RDWR|O_NONBLOCK|O_CLOEXEC) = 0
setsockopt(19, SOL_TCP, TCP_NODELAY, [1], 4) = 0
clock_gettime(CLOCK_MONOTONIC, {tv_sec=232, tv_nsec=527295000}) = 0
epoll_wait(3, [{EPOLLIN, {u32=5, u64=34359738373}}], 4096, 1000) = 1
read(5, "0T34033137717700", 1024) = 8
time(NULL)                              = 1559698600 (2019-06-05T09:36:40+0800)
connect(8, {sa_family=AF_INET, sin_port=htons(80), sin_addr=inet_addr("123.125.76.136")}, 16) = -1 EINPROGRESS (Operation now in progress)
clock_gettime(CLOCK_MONOTONIC, {tv_sec=232, tv_nsec=636297000}) = 0
epoll_ctl(3, EPOLL_CTL_ADD, 8, {EPOLLOUT, {u32=8, u64=38654705672}}) = 0
clock_gettime(CLOCK_MONOTONIC, {tv_sec=232, tv_nsec=638815000}) = 0
time(NULL)                              = 1559698600 (2019-06-05T09:36:40+0800)
brk(0x7fffd9e19000)                     = 0x7fffd9e19000
epoll_wait(3, [{EPOLLIN, {u32=5, u64=34359738373}}], 4096, 875) = 1
read(5, "0u3333313771770020g34133137717700200W34033137717700", 1024) = 24
time(NULL)                              = 1559698600 (2019-06-05T09:36:40+0800)
connect(4, {sa_family=AF_INET, sin_port=htons(80), sin_addr=inet_addr("123.125.76.136")}, 16) = -1 EINPROGRESS (Operation now in progress)
clock_gettime(CLOCK_MONOTONIC, {tv_sec=232, tv_nsec=643393000}) = 0
epoll_ctl(3, EPOLL_CTL_ADD, 4, {EPOLLOUT, {u32=4, u64=38654705668}}) = 0
time(NULL)                              = 1559698600 (2019-06-05T09:36:40+0800)
connect(9, {sa_family=AF_INET, sin_port=htons(80), sin_addr=inet_addr("123.125.76.136")}, 16) = -1 EINPROGRESS (Operation now in progress)
clock_gettime(CLOCK_MONOTONIC, {tv_sec=232, tv_nsec=647077000}) = 0
epoll_ctl(3, EPOLL_CTL_ADD, 9, {EPOLLOUT, {u32=9, u64=38654705673}}) = 0
time(NULL)                              = 1559698600 (2019-06-05T09:36:40+0800)
connect(10, {sa_family=AF_INET, sin_port=htons(80), sin_addr=inet_addr("123.125.76.136")}, 16) = -1 EINPROGRESS (Operation now in progress)
clock_gettime(CLOCK_MONOTONIC, {tv_sec=232, tv_nsec=648967000}) = 0
epoll_ctl(3, EPOLL_CTL_ADD, 10, {EPOLLOUT, {u32=10, u64=38654705674}}) = 0
clock_gettime(CLOCK_MONOTONIC, {tv_sec=232, tv_nsec=649672000}) = 0
time(NULL)                              = 1559698600 (2019-06-05T09:36:40+0800)
epoll_wait(3, [{EPOLLOUT, {u32=8, u64=38654705672}}], 4096, 870) = 1
epoll_ctl(3, EPOLL_CTL_DEL, 8, NULL)    = 0
getsockopt(8, SOL_SOCKET, SO_ERROR, [0], [4]) = 0
brk(0x7fffd9e49000)                     = 0x7fffd9e49000
sendto(8, "GET / HTTP/1.1rnHost: www.xinhua"..., 90, 0, NULL, 0) = 90
recvfrom(8, 0x7fffd9e28c70, 65536, 0, NULL, NULL) = -1 EAGAIN (Resource temporarily unavailable)
epoll_ctl(3, EPOLL_CTL_ADD, 8, {EPOLLIN, {u32=8, u64=38654705672}}) = 0
clock_gettime(CLOCK_MONOTONIC, {tv_sec=232, tv_nsec=655130000}) = 0
time(NULL)                              = 1559698600 (2019-06-05T09:36:40+0800)
epoll_wait(3, [{EPOLLIN, {u32=5, u64=34359738373}}, {EPOLLOUT, {u32=4, u64=38654705668}}, {EPOLLOUT, {u32=9, u64=38654705673}}], 4096, 865) = 3
read(5, "360l34133137717700", 1024) = 8
time(NULL)                              = 1559698600 (2019-06-05T09:36:40+0800)
connect(7, {sa_family=AF_INET, sin_port=htons(80), sin_addr=inet_addr("123.125.76.136")}, 16) = -1 EINPROGRESS (Operation now in progress)
clock_gettime(CLOCK_MONOTONIC, {tv_sec=232, tv_nsec=657746000}) = 0
epoll_ctl(3, EPOLL_CTL_ADD, 7, {EPOLLOUT, {u32=7, u64=38654705671}}) = 0
epoll_ctl(3, EPOLL_CTL_DEL, 4, NULL)    = 0
getsockopt(4, SOL_SOCKET, SO_ERROR, [0], [4]) = 0
sendto(4, "GET / HTTP/1.1rnHost: www.xinhua"..., 90, 0, NULL, 0) = 90
brk(0x7fffd9e79000)                     = 0x7fffd9e79000
recvfrom(4, 0x7fffd9e48c90, 65536, 0, NULL, NULL) = -1 EAGAIN (Resource temporarily unavailable)
epoll_ctl(3, EPOLL_CTL_ADD, 4, {EPOLLIN, {u32=4, u64=38654705668}}) = 0
epoll_ctl(3, EPOLL_CTL_DEL, 9, NULL)    = 0
getsockopt(9, SOL_SOCKET, SO_ERROR, [0], [4]) = 0
sendto(9, "GET / HTTP/1.1rnHost: www.xinhua"..., 90, 0, NULL, 0) = 90
recvfrom(9, 0x7fffd9e68cb0, 65536, 0, NULL, NULL) = -1 EAGAIN (Resource temporarily unavailable)
epoll_ctl(3, EPOLL_CTL_ADD, 9, {EPOLLIN, {u32=9, u64=38654705673}}) = 0
clock_gettime(CLOCK_MONOTONIC, {tv_sec=232, tv_nsec=662268000}) = 0
time(NULL)                              = 1559698600 (2019-06-05T09:36:40+0800)
epoll_wait(3, [{EPOLLIN, {u32=5, u64=34359738373}}, {EPOLLOUT, {u32=10, u64=38654705674}}, {EPOLLOUT, {u32=7, u64=38654705671}}], 4096, 859) = 3
read(5, "P~34133137717700320r34133137717700px34133137717700", 1024) = 24
time(NULL)                              = 1559698600 (2019-06-05T09:36:40+0800)
connect(17, {sa_family=AF_INET, sin_port=htons(80), sin_addr=inet_addr("123.125.76.136")}, 16) = -1 EINPROGRESS (Operation now in progress)
clock_gettime(CLOCK_MONOTONIC, {tv_sec=232, tv_nsec=664547000}) = 0
epoll_ctl(3, EPOLL_CTL_ADD, 17, {EPOLLOUT, {u32=17, u64=38654705681}}) = 0
time(NULL)                              = 1559698600 (2019-06-05T09:36:40+0800)
connect(11, {sa_family=AF_INET, sin_port=htons(80), sin_addr=inet_addr("123.125.76.136")}, 16) = -1 EINPROGRESS (Operation now in progress)
clock_gettime(CLOCK_MONOTONIC, {tv_sec=232, tv_nsec=665490000}) = 0
epoll_ctl(3, EPOLL_CTL_ADD, 11, {EPOLLOUT, {u32=11, u64=38654705675}}) = 0
time(NULL)                              = 1559698600 (2019-06-05T09:36:40+0800)
connect(12, {sa_family=AF_INET, sin_port=htons(80), sin_addr=inet_addr("123.125.76.136")}, 16) = -1 EINPROGRESS (Operation now in progress)
clock_gettime(CLOCK_MONOTONIC, {tv_sec=232, tv_nsec=667097000}) = 0
epoll_ctl(3, EPOLL_CTL_ADD, 12, {EPOLLOUT, {u32=12, u64=38654705676}}) = 0
epoll_ctl(3, EPOLL_CTL_DEL, 10, NULL)   = 0
getsockopt(10, SOL_SOCKET, SO_ERROR, [0], [4]) = 0
brk(0x7fffd9ea9000)                     = 0x7fffd9ea9000
sendto(10, "GET / HTTP/1.1rnHost: www.xinhua"..., 90, 0, NULL, 0) = 90
recvfrom(10, 0x7fffd9e88cd0, 65536, 0, NULL, NULL) = -1 EAGAIN (Resource temporarily unavailable)
epoll_ctl(3, EPOLL_CTL_ADD, 10, {EPOLLIN, {u32=10, u64=38654705674}}) = 0
epoll_ctl(3, EPOLL_CTL_DEL, 7, NULL)    = 0
getsockopt(7, SOL_SOCKET, SO_ERROR, [0], [4]) = 0
sendto(7, "GET / HTTP/1.1rnHost: www.xinhua"..., 90, 0, NULL, 0) = 90
brk(0x7fffd9ed9000)                     = 0x7fffd9ed9000
recvfrom(7, 0x7fffd9ea8cf0, 65536, 0, NULL, NULL) = -1 EAGAIN (Resource temporarily unavailable)
epoll_ctl(3, EPOLL_CTL_ADD, 7, {EPOLLIN, {u32=7, u64=38654705671}}) = 0
clock_gettime(CLOCK_MONOTONIC, {tv_sec=232, tv_nsec=670626000}) = 0
time(NULL)                              = 1559698600 (2019-06-05T09:36:40+0800)
epoll_wait(3, [{EPOLLIN, {u32=5, u64=34359738373}}, {EPOLLOUT, {u32=17, u64=38654705681}}, {EPOLLOUT, {u32=11, u64=38654705675}}], 4096, 855) = 3
read(5, "202123413313771770000020434133137717700", 1024) = 16
time(NULL)                              = 1559698600 (2019-06-05T09:36:40+0800)
connect(19, {sa_family=AF_INET, sin_port=htons(80), sin_addr=inet_addr("123.125.76.136")}, 16) = -1 EINPROGRESS (Operation now in progress)
clock_gettime(CLOCK_MONOTONIC, {tv_sec=232, tv_nsec=672183000}) = 0
epoll_ctl(3, EPOLL_CTL_ADD, 19, {EPOLLOUT, {u32=19, u64=38654705683}}) = 0
time(NULL)                              = 1559698600 (2019-06-05T09:36:40+0800)
connect(18, {sa_family=AF_INET, sin_port=htons(80), sin_addr=inet_addr("123.125.76.136")}, 16) = -1 EINPROGRESS (Operation now in progress)
clock_gettime(CLOCK_MONOTONIC, {tv_sec=232, tv_nsec=672576000}) = 0
epoll_ctl(3, EPOLL_CTL_ADD, 18, {EPOLLOUT, {u32=18, u64=38654705682}}) = 0
epoll_ctl(3, EPOLL_CTL_DEL, 17, NULL)   = 0
getsockopt(17, SOL_SOCKET, SO_ERROR, [0], [4]) = 0
sendto(17, "GET / HTTP/1.1rnHost: www.xinhua"..., 90, 0, NULL, 0) = 90
recvfrom(17, 0x7fffd9ec8d10, 65536, 0, NULL, NULL) = -1 EAGAIN (Resource temporarily unavailable)
epoll_ctl(3, EPOLL_CTL_ADD, 17, {EPOLLIN, {u32=17, u64=38654705681}}) = 0
epoll_ctl(3, EPOLL_CTL_DEL, 11, NULL)   = 0
getsockopt(11, SOL_SOCKET, SO_ERROR, [0], [4]) = 0
brk(0x7fffd9f09000)                     = 0x7fffd9f09000
sendto(11, "GET / HTTP/1.1rnHost: www.xinhua"..., 90, 0, NULL, 0) = 90
recvfrom(11, 0x7fffd9ee8d30, 65536, 0, NULL, NULL) = -1 EAGAIN (Resource temporarily unavailable)
epoll_ctl(3, EPOLL_CTL_ADD, 11, {EPOLLIN, {u32=11, u64=38654705675}}) = 0
clock_gettime(CLOCK_MONOTONIC, {tv_sec=232, tv_nsec=674303000}) = 0
time(NULL)                              = 1559698600 (2019-06-05T09:36:40+0800)
epoll_wait(3, [{EPOLLOUT, {u32=12, u64=38654705676}}], 4096, 992) = 1
epoll_ctl(3, EPOLL_CTL_DEL, 12, NULL)   = 0
getsockopt(12, SOL_SOCKET, SO_ERROR, [0], [4]) = 0
sendto(12, "GET / HTTP/1.1rnHost: www.xinhua"..., 90, 0, NULL, 0) = 90
brk(0x7fffd9f39000)                     = 0x7fffd9f39000
recvfrom(12, 0x7fffd9f08d50, 65536, 0, NULL, NULL) = -1 EAGAIN (Resource temporarily unavailable)
epoll_ctl(3, EPOLL_CTL_ADD, 12, {EPOLLIN, {u32=12, u64=38654705676}}) = 0
clock_gettime(CLOCK_MONOTONIC, {tv_sec=232, tv_nsec=687389000}) = 0
time(NULL)                              = 1559698600 (2019-06-05T09:36:40+0800)
epoll_wait(3, [{EPOLLOUT, {u32=19, u64=38654705683}}, {EPOLLOUT, {u32=18, u64=38654705682}}], 4096, 984) = 2
epoll_ctl(3, EPOLL_CTL_DEL, 19, NULL)   = 0
getsockopt(19, SOL_SOCKET, SO_ERROR, [0], [4]) = 0
sendto(19, "GET / HTTP/1.1rnHost: www.xinhua"..., 90, 0, NULL, 0) = 90
recvfrom(19, 0x7fffd9f28d70, 65536, 0, NULL, NULL) = -1 EAGAIN (Resource temporarily unavailable)
epoll_ctl(3, EPOLL_CTL_ADD, 19, {EPOLLIN, {u32=19, u64=38654705683}}) = 0
epoll_ctl(3, EPOLL_CTL_DEL, 18, NULL)   = 0
getsockopt(18, SOL_SOCKET, SO_ERROR, [0], [4]) = 0
brk(0x7fffd9f69000)                     = 0x7fffd9f69000
sendto(18, "GET / HTTP/1.1rnHost: www.xinhua"..., 90, 0, NULL, 0) = 90
recvfrom(18, 0x7fffd9f48d90, 65536, 0, NULL, NULL) = -1 EAGAIN (Resource temporarily unavailable)
epoll_ctl(3, EPOLL_CTL_ADD, 18, {EPOLLIN, {u32=18, u64=38654705682}}) = 0
clock_gettime(CLOCK_MONOTONIC, {tv_sec=232, tv_nsec=694225000}) = 0
time(NULL)                              = 1559698600 (2019-06-05T09:36:40+0800)
epoll_wait(3, [{EPOLLIN, {u32=4, u64=38654705668}}], 4096, -1) = 1
epoll_ctl(3, EPOLL_CTL_DEL, 4, NULL)    = 0
recvfrom(4, "HTTP/1.1 200 OKrnContent-Type: t"..., 65536, 0, NULL, NULL) = 4096
recvfrom(4, 0x7fffd9e48c90, 65536, 0, NULL, NULL) = -1 EAGAIN (Resource temporarily unavailable)
epoll_ctl(3, EPOLL_CTL_ADD, 4, {EPOLLIN, {u32=4, u64=38654705668}}) = 0
clock_gettime(CLOCK_MONOTONIC, {tv_sec=237, tv_nsec=399093000}) = 0
time(NULL)                              = 1559698604 (2019-06-05T09:36:44+0800)
brk(0x7fffd9f59000)                     = 0x7fffd9f59000
epoll_wait(3, [{EPOLLIN, {u32=4, u64=38654705668}}], 4096, -1) = 1
epoll_ctl(3, EPOLL_CTL_DEL, 4, NULL)    = 0
recvfrom(4, "V{362b423622331350H357313374314s372N325732416n25724H217y376204P3206"..., 65536, 0, NULL, NULL) = 8192
recvfrom(4, 0x7fffd9e48c90, 65536, 0, NULL, NULL) = -1 EAGAIN (Resource temporarily unavailable)
epoll_ctl(3, EPOLL_CTL_ADD, 4, {EPOLLIN, {u32=4, u64=38654705668}}) = 0
clock_gettime(CLOCK_MONOTONIC, {tv_sec=237, tv_nsec=460756000}) = 0
time(NULL)                              = 1559698604 (2019-06-05T09:36:44+0800)
epoll_wait(3, [{EPOLLIN, {u32=4, u64=38654705668}}], 4096, -1) = 1
epoll_ctl(3, EPOLL_CTL_DEL, 4, NULL)    = 0
recvfrom(4, "374346{V311306246|0F2763370370`222247253312306200262~37425020'317233wr"..., 65536, 0, NULL, NULL) = 8192
recvfrom(4, 0x7fffd9e48c90, 65536, 0, NULL, NULL) = -1 EAGAIN (Resource temporarily unavailable)
epoll_ctl(3, EPOLL_CTL_ADD, 4, {EPOLLIN, {u32=4, u64=38654705668}}) = 0
clock_gettime(CLOCK_MONOTONIC, {tv_sec=237, tv_nsec=465855000}) = 0
time(NULL)                              = 1559698604 (2019-06-05T09:36:44+0800)
epoll_wait(3, [{EPOLLIN, {u32=4, u64=38654705668}}], 4096, -1) = 1
epoll_ctl(3, EPOLL_CTL_DEL, 4, NULL)    = 0
recvfrom(4, "[email protected]#337=J2=274337201307=3O32434235s7167^"23"..., 65536, 0, NULL, NULL) = 19559
brk(0x7fffd9f99000)                     = 0x7fffd9f99000
close(4)                                = 0
write(1, "177115 bytesn", 13)          = 13
munmap(0x7fc028910000, 2101248)         = 0
clock_gettime(CLOCK_MONOTONIC, {tv_sec=237, tv_nsec=479677000}) = 0
time(NULL)                              = 1559698604 (2019-06-05T09:36:44+0800)
epoll_wait(3, [{EPOLLIN, {u32=9, u64=38654705673}}, {EPOLLIN, {u32=7, u64=38654705671}}, {EPOLLIN, {u32=17, u64=38654705681}}, {EPOLLIN, {u32=11, u64=38654705675}}], 4096, -1) = 4
epoll_ctl(3, EPOLL_CTL_DEL, 9, NULL)    = 0
recvfrom(9, "HTTP/1.1 200 OKrnContent-Type: t"..., 65536, 0, NULL, NULL) = 4096
recvfrom(9, 0x7fffd9e68cb0, 65536, 0, NULL, NULL) = -1 EAGAIN (Resource temporarily unavailable)
epoll_ctl(3, EPOLL_CTL_ADD, 9, {EPOLLIN, {u32=9, u64=38654705673}}) = 0
epoll_ctl(3, EPOLL_CTL_DEL, 7, NULL)    = 0
recvfrom(7, "HTTP/1.1 200 OKrnContent-Type: t"..., 65536, 0, NULL, NULL) = 4096
recvfrom(7, "V{362b423622331350H357313374314s372N325732416n25724H217y376204P3206"..., 65536, 0, NULL, NULL) = 4096
recvfrom(7, 0x7fffd9ea8cf0, 65536, 0, NULL, NULL) = -1 EAGAIN (Resource temporarily unavailable)
epoll_ctl(3, EPOLL_CTL_ADD, 7, {EPOLLIN, {u32=7, u64=38654705671}}) = 0
epoll_ctl(3, EPOLL_CTL_DEL, 17, NULL)   = 0
recvfrom(17, "HTTP/1.1 200 OKrnContent-Type: t"..., 65536, 0, NULL, NULL) = 8192
recvfrom(17, 0x7fffd9ec8d10, 65536, 0, NULL, NULL) = -1 EAGAIN (Resource temporarily unavailable)
epoll_ctl(3, EPOLL_CTL_ADD, 17, {EPOLLIN, {u32=17, u64=38654705681}}) = 0
epoll_ctl(3, EPOLL_CTL_DEL, 11, NULL)   = 0
recvfrom(11, "HTTP/1.1 200 OKrnContent-Type: t"..., 65536, 0, NULL, NULL) = 8192
recvfrom(11, 0x7fffd9ee8d30, 65536, 0, NULL, NULL) = -1 EAGAIN (Resource temporarily unavailable)
epoll_ctl(3, EPOLL_CTL_ADD, 11, {EPOLLIN, {u32=11, u64=38654705675}}) = 0
clock_gettime(CLOCK_MONOTONIC, {tv_sec=238, tv_nsec=747275000}) = 0
time(NULL)                              = 1559698606 (2019-06-05T09:36:46+0800)
madvise(0x7fffd9dcd000, 61440, MADV_DONTNEED) = 0
madvise(0x7fffd9e39000, 126976, MADV_DONTNEED) = 0
epoll_wait(3, [{EPOLLIN, {u32=8, u64=38654705672}}, {EPOLLIN, {u32=10, u64=38654705674}}, {EPOLLIN, {u32=12, u64=38654705676}}, {EPOLLIN, {u32=19, u64=38654705683}}, {EPOLLIN, {u32=18, u64=38654705682}}, {EPOLLIN, {u32=9, u64=38654705673}}, {EPOLLIN, {u32=7, u64=38654705671}}, {EPOLLIN, {u32=17, u64=38654705681}}], 4096, -1) = 8
epoll_ctl(3, EPOLL_CTL_DEL, 8, NULL)    = 0
recvfrom(8, "HTTP/1.1 200 OKrnContent-Type: t"..., 65536, 0, NULL, NULL) = 20480
recvfrom(8, 0x7fffd9e28c70, 65536, 0, NULL, NULL) = -1 EAGAIN (Resource temporarily unavailable)
epoll_ctl(3, EPOLL_CTL_ADD, 8, {EPOLLIN, {u32=8, u64=38654705672}}) = 0
epoll_ctl(3, EPOLL_CTL_DEL, 10, NULL)   = 0
recvfrom(10, "HTTP/1.1 200 OKrnContent-Type: t"..., 65536, 0, NULL, NULL) = 12288
recvfrom(10, 0x7fffd9e88cd0, 65536, 0, NULL, NULL) = -1 EAGAIN (Resource temporarily unavailable)
epoll_ctl(3, EPOLL_CTL_ADD, 10, {EPOLLIN, {u32=10, u64=38654705674}}) = 0
epoll_ctl(3, EPOLL_CTL_DEL, 12, NULL)   = 0
recvfrom(12, "HTTP/1.1 200 OKrnContent-Type: t"..., 65536, 0, NULL, NULL) = 20480
recvfrom(12, 0x7fffd9f08d50, 65536, 0, NULL, NULL) = -1 EAGAIN (Resource temporarily unavailable)
epoll_ctl(3, EPOLL_CTL_ADD, 12, {EPOLLIN, {u32=12, u64=38654705676}}) = 0
epoll_ctl(3, EPOLL_CTL_DEL, 19, NULL)   = 0
recvfrom(19, "HTTP/1.1 200 OKrnContent-Type: t"..., 65536, 0, NULL, NULL) = 20480
recvfrom(19, 0x7fffd9f28d70, 65536, 0, NULL, NULL) = -1 EAGAIN (Resource temporarily unavailable)
epoll_ctl(3, EPOLL_CTL_ADD, 19, {EPOLLIN, {u32=19, u64=38654705683}}) = 0
epoll_ctl(3, EPOLL_CTL_DEL, 18, NULL)   = 0
recvfrom(18, "HTTP/1.1 200 OKrnContent-Type: t"..., 65536, 0, NULL, NULL) = 20480
recvfrom(18, 0x7fffd9f48d90, 65536, 0, NULL, NULL) = -1 EAGAIN (Resource temporarily unavailable)
epoll_ctl(3, EPOLL_CTL_ADD, 18, {EPOLLIN, {u32=18, u64=38654705682}}) = 0
epoll_ctl(3, EPOLL_CTL_DEL, 9, NULL)    = 0
recvfrom(9, "V{362b423622331350H357313374314s372N325732416n25724H217y376204P3206"..., 65536, 0, NULL, NULL) = 29504
recvfrom(9, "231_243'240C3013764931314255236344f22305_357hojll0FS240t254"..., 65536, 0, NULL, NULL) = 6439
close(9)                                = 0
write(1, "177115 bytesn", 13)          = 13
munmap(0x7fc0221a0000, 2101248)         = 0
epoll_ctl(3, EPOLL_CTL_DEL, 7, NULL)    = 0
recvfrom(7, "32313372375"271e271cZ343bb251331314227323L257224311324335276(D32334124231"..., 65536, 0, NULL, NULL) = 31847
close(7)                                = 0
write(1, "177115 bytesn", 13)          = 13
munmap(0x7fc021f90000, 2101248)         = 0
epoll_ctl(3, EPOLL_CTL_DEL, 17, NULL)   = 0
recvfrom(17, "32313372375"271e271cZ343bb251331314227323L257224311324335276(D32334124231"..., 65536, 0, NULL, NULL) = 31847
close(17)                               = 0
write(1, "177115 bytesn", 13)          = 13
munmap(0x7fc021530000, 2101248)         = 0
clock_gettime(CLOCK_MONOTONIC, {tv_sec=238, tv_nsec=783851000}) = 0
time(NULL)                              = 1559698606 (2019-06-05T09:36:46+0800)
epoll_wait(3, [{EPOLLIN, {u32=11, u64=38654705675}}, {EPOLLIN, {u32=8, u64=38654705672}}, {EPOLLIN, {u32=10, u64=38654705674}}, {EPOLLIN, {u32=12, u64=38654705676}}, {EPOLLIN, {u32=19, u64=38654705683}}, {EPOLLIN, {u32=18, u64=38654705682}}], 4096, -1) = 6
epoll_ctl(3, EPOLL_CTL_DEL, 11, NULL)   = 0
recvfrom(11, "32313372375"271e271cZ343bb251331314227323L257224311324335276(D32334124231"..., 65536, 0, NULL, NULL) = 31847
close(11)                               = 0
write(1, "177115 bytesn", 13)          = 13
munmap(0x7fc021b60000, 2101248)         = 0
epoll_ctl(3, EPOLL_CTL_DEL, 8, NULL)    = 0
recvfrom(8, "[email protected]#337=J2=274337201307=3O32434235s7167^"23"..., 65536, 0, NULL, NULL) = 19559
close(8)                                = 0
write(1, "177115 bytesn", 13)          = 13
munmap(0x7fc0225c0000, 2101248)         = 0
epoll_ctl(3, EPOLL_CTL_DEL, 10, NULL)   = 0
recvfrom(10, "374346{V311306246|0F2763370370`222247253312306200262~37425020'317233wr"..., 65536, 0, NULL, NULL) = 27751
close(10)                               = 0
write(1, "177115 bytesn", 13)          = 13
munmap(0x7fc0223b0000, 2101248)         = 0
epoll_ctl(3, EPOLL_CTL_DEL, 12, NULL)   = 0
recvfrom(12, "[email protected]#337=J2=274337201307=3O32434235s7167^"23"..., 65536, 0, NULL, NULL) = 19559
close(12)                               = 0
write(1, "177115 bytesn", 13)          = 13
munmap(0x7fc021950000, 2101248)         = 0
epoll_ctl(3, EPOLL_CTL_DEL, 19, NULL)   = 0
recvfrom(19, "[email protected]#337=J2=274337201307=3O32434235s7167^"23"..., 65536, 0, NULL, NULL) = 19559
close(19)                               = 0
write(1, "177115 bytesn", 13)          = 13
munmap(0x7fc021110000, 2101248)         = 0
epoll_ctl(3, EPOLL_CTL_DEL, 18, NULL)   = 0
recvfrom(18, "[email protected]#337=J2=274337201307=3O32434235s7167^"23"..., 65536, 0, NULL, NULL) = 19559
close(18)                               = 0
write(1, "177115 bytesn", 13)          = 13
munmap(0x7fc021320000, 2101248)         = 0
clock_gettime(CLOCK_MONOTONIC, {tv_sec=238, tv_nsec=802835000}) = 0
time(NULL)                              = 1559698606 (2019-06-05T09:36:46+0800)
futex(0x7fffd9e01ce0, FUTEX_WAKE_PRIVATE, 2147483647) = 4
futex(0x7fffd9e01c90, FUTEX_WAKE_PRIVATE, 1) = 1
futex(0x7fc023ff09d0, FUTEX_WAIT, 56, NULL) = -1 EAGAIN (Resource temporarily unavailable)
epoll_ctl(3, EPOLL_CTL_DEL, 5, NULL)    = 0
close(5)                                = 0
close(6)                                = 0
close(2)                                = 0
close(1)                                = 0
close(0)                                = 0
munmap(0x7fc028fa0000, 2231560)         = 0
munmap(0x7fc028d1f000, 2624568)         = 0
close(3)                                = 0

更多學習內容可以訪問

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