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Connection: Replace usages of goto

This commit is contained in:
Lioncash 2019-08-21 18:43:51 -04:00
parent 6c9fdfcbb7
commit ac4858b857
1 changed files with 56 additions and 32 deletions
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90
hecl/lib/Blender/Connection.cpp
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@ -107,7 +107,7 @@ static int Write(int fd, const void* buf, size_t size) {
uint32_t Connection::_readStr(char* buf, uint32_t bufSz) {
uint32_t readLen;
int ret = Read(m_readpipe[0], &readLen, 4);
int ret = Read(m_readpipe[0], &readLen, sizeof(readLen));
if (ret < 4) {
BlenderLog.report(logvisor::Error, fmt("Pipe error {} {}"), ret, strerror(errno));
_blenderDied();
@ -124,8 +124,11 @@ uint32_t Connection::_readStr(char* buf, uint32_t bufSz) {
if (ret < 0) {
BlenderLog.report(logvisor::Fatal, fmt("{}"), strerror(errno));
return 0;
} else if (readLen >= 9) {
if (!memcmp(buf, "EXCEPTION", std::min(readLen, uint32_t(9)))) {
}
constexpr std::string_view exception_str{"EXCEPTION"};
if (readLen >= exception_str.size()) {
if (exception_str.compare(0, exception_str.size(), buf) == 0) {
_blenderDied();
return 0;
}
@ -136,54 +139,75 @@ uint32_t Connection::_readStr(char* buf, uint32_t bufSz) {
}
uint32_t Connection::_writeStr(const char* buf, uint32_t len, int wpipe) {
int ret, nlerr;
nlerr = Write(wpipe, &len, 4);
if (nlerr < 4)
goto err;
ret = Write(wpipe, buf, len);
if (ret < 0)
goto err;
return (uint32_t)ret;
err:
const auto error = [this] {
_blenderDied();
return 0;
return 0U;
};
const int nlerr = Write(wpipe, &len, 4);
if (nlerr < 4) {
return error();
}
const int ret = Write(wpipe, buf, len);
if (ret < 0) {
return error();
}
return static_cast<uint32_t>(ret);
}
size_t Connection::_readBuf(void* buf, size_t len) {
uint8_t* cBuf = reinterpret_cast<uint8_t*>(buf);
size_t readLen = 0;
do {
int ret = Read(m_readpipe[0], cBuf, len);
if (ret < 0)
goto err;
if (len >= 9)
if (!memcmp((char*)cBuf, "EXCEPTION", std::min(len, size_t(9))))
const auto error = [this] {
_blenderDied();
return 0U;
};
auto* cBuf = static_cast<uint8_t*>(buf);
size_t readLen = 0;
do {
const int ret = Read(m_readpipe[0], cBuf, len);
if (ret < 0) {
return error();
}
constexpr std::string_view exception_str{"EXCEPTION"};
if (len >= exception_str.size()) {
if (exception_str.compare(0, exception_str.size(), static_cast<char*>(buf)) == 0) {
_blenderDied();
}
}
readLen += ret;
cBuf += ret;
len -= ret;
} while (len);
} while (len != 0);
return readLen;
err:
_blenderDied();
return 0;
}
size_t Connection::_writeBuf(const void* buf, size_t len) {
const uint8_t* cBuf = reinterpret_cast<const uint8_t*>(buf);
const auto error = [this] {
_blenderDied();
return 0U;
};
const auto* cBuf = static_cast<const uint8_t*>(buf);
size_t writeLen = 0;
do {
int ret = Write(m_writepipe[1], cBuf, len);
if (ret < 0)
goto err;
const int ret = Write(m_writepipe[1], cBuf, len);
if (ret < 0) {
return error();
}
writeLen += ret;
cBuf += ret;
len -= ret;
} while (len);
} while (len != 0);
return writeLen;
err:
_blenderDied();
return 0;
}
void Connection::_closePipe() {