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Cleanup unix udp client

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This commit is contained in:
gabime 2021-09-05 16:35:11 +03:00
parent fecb3f4307
commit c0d10efabf
1 changed files with 35 additions and 34 deletions
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69
include/spdlog/details/udp_client.h
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@ -3,11 +3,13 @@
#pragma once
// Helper RAII over unix udp client socket.
// Will throw on construction if the socket creation failed.
#ifdef _WIN32
#error include udp_client-windows.h instead
# error "include udp_client-windows.h instead"
#endif
// udp client helper
#include <spdlog/common.h>
#include <spdlog/details/os.h>
@ -24,35 +26,12 @@ namespace details {
class udp_client
{
const int TX_BUFFER_SIZE = 10240;
static constexpr int TX_BUFFER_SIZE = 1024 * 10;
int socket_ = -1;
struct sockaddr_in sockAddr_;
public:
bool init(const std::string &host, uint16_t port)
{
socket_ = socket(PF_INET, SOCK_DGRAM, 0);
if (socket_ < 0)
{
throw_spdlog_ex("error: Create Socket Failed!");
}
int option_value = TX_BUFFER_SIZE;
if (setsockopt(socket_, SOL_SOCKET, SO_SNDBUF, (char*)&option_value, sizeof(option_value)) < 0)
{
close();
throw_spdlog_ex("error: setsockopt(SO_SNDBUF) Failed!");
}
sockAddr_.sin_family = AF_INET;
sockAddr_.sin_port = htons(port);
inet_aton(host.c_str(), &sockAddr_.sin_addr);
memset(sockAddr_.sin_zero, 0x00, sizeof(sockAddr_.sin_zero));
return true;
}
void close()
void cleanup_()
{
if (socket_ != -1)
{
@ -61,14 +40,37 @@ public:
}
}
int fd() const
public:
udp_client(const std::string &host, uint16_t port)
{
return socket_;
socket_ = ::socket(PF_INET, SOCK_DGRAM, 0);
if (socket_ < 0)
{
throw_spdlog_ex("error: Create Socket Failed!");
}
int option_value = TX_BUFFER_SIZE;
if (::setsockopt(socket_, SOL_SOCKET, SO_SNDBUF, reinterpret_cast<const char *>(&option_value), sizeof(option_value)) < 0)
{
cleanup_();
throw_spdlog_ex("error: setsockopt(SO_SNDBUF) Failed!");
}
sockAddr_.sin_family = AF_INET;
sockAddr_.sin_port = htons(port);
::inet_aton(host.c_str(), &sockAddr_.sin_addr);
::memset(sockAddr_.sin_zero, 0x00, sizeof(sockAddr_.sin_zero));
}
~udp_client()
{
close();
cleanup_();
}
int fd() const
{
return socket_;
}
// Send exactly n_bytes of the given data.
@ -77,9 +79,8 @@ public:
{
ssize_t toslen = 0;
socklen_t tolen = sizeof(struct sockaddr);
if (( toslen = sendto(socket_, data, n_bytes, 0, (struct sockaddr *)&sockAddr_, tolen)) == -1)
{
close();
if ((toslen = ::sendto(socket_, data, n_bytes, 0, (struct sockaddr *)&sockAddr_, tolen)) == -1)
{
throw_spdlog_ex("sendto(2) failed", errno);
}
}