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https://github.com/hrydgard/ppsspp.git
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c3aa0f7452
This resolves some weird inconsistentes and include order problems related to errno. Needed for the next steps.
127 lines
3.2 KiB
C++
127 lines
3.2 KiB
C++
#include "ppsspp_config.h"
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#include <algorithm>
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#include <cstring>
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#include "Common/Net/SocketCompat.h"
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#if _MSC_VER
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#pragma warning(disable:4267)
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#endif
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#include "Common/File/FileDescriptor.h"
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#include "Common/Log.h"
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#include "Common/Net/NetBuffer.h"
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#include "Common/TimeUtil.h"
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namespace net {
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void RequestProgress::Update(int64_t downloaded, int64_t totalBytes, bool done) {
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if (totalBytes) {
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progress = (double)downloaded / (double)totalBytes;
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} else {
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progress = 0.01f;
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}
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if (callback) {
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callback(downloaded, totalBytes, done);
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}
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}
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bool Buffer::FlushSocket(uintptr_t sock, double timeout, bool *cancelled) {
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static constexpr float CANCEL_INTERVAL = 0.25f;
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data_.iterate_blocks([&](const char *data, size_t size) {
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for (size_t pos = 0, end = size; pos < end; ) {
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bool ready = false;
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double endTimeout = time_now_d() + timeout;
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while (!ready) {
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if (cancelled && *cancelled)
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return false;
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ready = fd_util::WaitUntilReady(sock, CANCEL_INTERVAL, true);
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if (!ready && time_now_d() > endTimeout) {
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ERROR_LOG(Log::IO, "FlushSocket timed out");
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return false;
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}
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}
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int sent = send(sock, &data[pos], end - pos, MSG_NOSIGNAL);
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// TODO: Do we need some retry logic here, instead of just giving up?
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if (sent < 0) {
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ERROR_LOG(Log::IO, "FlushSocket failed to send: %d", errno);
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return false;
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}
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pos += sent;
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}
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return true;
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});
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data_.clear();
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return true;
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}
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bool Buffer::ReadAllWithProgress(int fd, int knownSize, RequestProgress *progress) {
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static constexpr float CANCEL_INTERVAL = 0.25f;
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std::vector<char> buf;
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// We're non-blocking and reading from an OS buffer, so try to read as much as we can at a time.
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if (knownSize >= 65536 * 16) {
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buf.resize(65536);
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} else if (knownSize >= 1024 * 16) {
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buf.resize(knownSize / 16);
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} else {
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buf.resize(1024);
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}
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double st = time_now_d();
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int total = 0;
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while (true) {
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bool ready = false;
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// If we might need to cancel, check on a timer for it to be ready.
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// After this, we'll block on reading so we do this while first if we have a cancel pointer.
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while (!ready && progress && progress->cancelled) {
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if (*progress->cancelled)
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return false;
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ready = fd_util::WaitUntilReady(fd, CANCEL_INTERVAL, false);
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}
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int retval = recv(fd, &buf[0], buf.size(), MSG_NOSIGNAL);
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if (retval == 0) {
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return true;
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} else if (retval < 0) {
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if (socket_errno != EWOULDBLOCK) {
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ERROR_LOG(Log::IO, "Error reading from buffer: %i", retval);
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return false;
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}
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// Just try again on a would block error, not a real error.
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continue;
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}
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char *p = Append((size_t)retval);
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memcpy(p, &buf[0], retval);
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total += retval;
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if (progress) {
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progress->Update(total, knownSize, false);
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progress->kBps = (float)(total / (time_now_d() - st)) / 1024.0f;
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}
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}
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return true;
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}
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int Buffer::Read(int fd, size_t sz) {
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char buf[4096];
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int retval;
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size_t received = 0;
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while ((retval = recv(fd, buf, std::min(sz, sizeof(buf)), MSG_NOSIGNAL)) > 0) {
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if (retval < 0) {
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return retval;
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}
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char *p = Append((size_t)retval);
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memcpy(p, buf, retval);
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sz -= retval;
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received += retval;
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if (sz == 0)
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return 0;
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}
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return (int)received;
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}
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} // namespace
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