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Use 'poll' as default instead of select (Fix #215)

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yhirose 2019-09-17 18:53:23 -04:00
parent d599a36c2a
commit 4ab9270660
1 changed files with 56 additions and 26 deletions
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82
httplib.h
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@ -8,6 +8,21 @@
#ifndef CPPHTTPLIB_HTTPLIB_H
#define CPPHTTPLIB_HTTPLIB_H
/*
* Configuration
*/
#define CPPHTTPLIB_KEEPALIVE_TIMEOUT_SECOND 5
#define CPPHTTPLIB_KEEPALIVE_TIMEOUT_USECOND 0
#define CPPHTTPLIB_KEEPALIVE_MAX_COUNT 5
#define CPPHTTPLIB_READ_TIMEOUT_SECOND 5
#define CPPHTTPLIB_READ_TIMEOUT_USECOND 0
#define CPPHTTPLIB_REQUEST_URI_MAX_LENGTH 8192
#define CPPHTTPLIB_REDIRECT_MAX_COUNT 20
#define CPPHTTPLIB_PAYLOAD_MAX_LENGTH (std::numeric_limits<size_t>::max)()
#define CPPHTTPLIB_RECV_BUFSIZ size_t(4096u)
#define CPPHTTPLIB_THREAD_POOL_COUNT 8
#define CPPHTTPLIB_USE_POLL
#ifdef _WIN32
#ifndef _CRT_SECURE_NO_WARNINGS
#define _CRT_SECURE_NO_WARNINGS
@ -52,11 +67,19 @@ typedef int ssize_t;
#endif // strcasecmp
typedef SOCKET socket_t;
#else
#ifdef CPPHTTPLIB_USE_POLL
#define poll(fds, nfds, timeout) WSAPoll(fds, nfds, timeout)
#endif
#else // not _WIN32
#include <arpa/inet.h>
#include <cstring>
#include <netdb.h>
#include <netinet/in.h>
#ifdef CPPHTTPLIB_USE_POLL
#include <poll.h>
#endif
#include <pthread.h>
#include <signal.h>
#include <sys/select.h>
@ -104,20 +127,6 @@ inline const unsigned char *ASN1_STRING_get0_data(const ASN1_STRING *asn1) {
#include <zlib.h>
#endif
/*
* Configuration
*/
#define CPPHTTPLIB_KEEPALIVE_TIMEOUT_SECOND 5
#define CPPHTTPLIB_KEEPALIVE_TIMEOUT_USECOND 0
#define CPPHTTPLIB_KEEPALIVE_MAX_COUNT 5
#define CPPHTTPLIB_READ_TIMEOUT_SECOND 5
#define CPPHTTPLIB_READ_TIMEOUT_USECOND 0
#define CPPHTTPLIB_REQUEST_URI_MAX_LENGTH 8192
#define CPPHTTPLIB_REDIRECT_MAX_COUNT 20
#define CPPHTTPLIB_PAYLOAD_MAX_LENGTH (std::numeric_limits<size_t>::max)()
#define CPPHTTPLIB_RECV_BUFSIZ size_t(4096u)
#define CPPHTTPLIB_THREAD_POOL_COUNT 8
namespace httplib {
namespace detail {
@ -986,6 +995,15 @@ inline int close_socket(socket_t sock) {
}
inline int select_read(socket_t sock, time_t sec, time_t usec) {
#ifdef CPPHTTPLIB_USE_POLL
struct pollfd pfd_read;
pfd_read.fd = sock;
pfd_read.events = POLLIN;
auto timeout = static_cast<int>(sec * 1000 + usec / 1000);
return poll(&pfd_read, 1, timeout);
#else
fd_set fds;
FD_ZERO(&fds);
FD_SET(sock, &fds);
@ -995,9 +1013,26 @@ inline int select_read(socket_t sock, time_t sec, time_t usec) {
tv.tv_usec = static_cast<long>(usec);
return select(static_cast<int>(sock + 1), &fds, nullptr, nullptr, &tv);
#endif
}
inline bool wait_until_socket_is_ready(socket_t sock, time_t sec, time_t usec) {
#ifdef CPPHTTPLIB_USE_POLL
struct pollfd pfd_read;
pfd_read.fd = sock;
pfd_read.events = POLLIN | POLLOUT;
auto timeout = static_cast<int>(sec * 1000 + usec / 1000);
if (poll(&pfd_read, 1, timeout) > 0 &&
pfd_read.revents & (POLLIN | POLLOUT)) {
int error = 0;
socklen_t len = sizeof(error);
return getsockopt(sock, SOL_SOCKET, SO_ERROR, (char *)&error, &len) >= 0 &&
!error;
}
return false;
#else
fd_set fdsr;
FD_ZERO(&fdsr);
FD_SET(sock, &fdsr);
@ -1009,20 +1044,15 @@ inline bool wait_until_socket_is_ready(socket_t sock, time_t sec, time_t usec) {
tv.tv_sec = static_cast<long>(sec);
tv.tv_usec = static_cast<long>(usec);
if (select(static_cast<int>(sock + 1), &fdsr, &fdsw, &fdse, &tv) < 0) {
return false;
} else if (FD_ISSET(sock, &fdsr) || FD_ISSET(sock, &fdsw)) {
if (select(static_cast<int>(sock + 1), &fdsr, &fdsw, &fdse, &tv) > 0 &&
(FD_ISSET(sock, &fdsr) || FD_ISSET(sock, &fdsw))) {
int error = 0;
socklen_t len = sizeof(error);
if (getsockopt(sock, SOL_SOCKET, SO_ERROR, (char *)&error, &len) < 0 ||
error) {
return false;
}
} else {
return false;
return getsockopt(sock, SOL_SOCKET, SO_ERROR, (char *)&error, &len) >= 0 &&
!error;
}
return true;
return false;
#endif
}
template <typename T>