bissen21/Marlin_Firmware
1
0
Fork 0
Code Issues Pull Requests Projects Releases 4 Wiki Activity

Use macros where possible

Browse Source 
Apply `constrain`, `NOMORE`, `NOLESS` and `CRITICAL_SECTION` macros
wherever possible.
This commit is contained in:
Scott Lahteine
2016-02-21 22:17:32 -08:00
parent c8f76bb8aa
commit 209f5f21e0
8 changed files with 21 additions and 31 deletions
Download Patch File Download Diff File Expand all files Collapse all files

9
Marlin/SdBaseFile.cpp
View File

@ -1049,9 +1049,8 @@ int16_t SdBaseFile::read(void* buf, uint16_t nbyte) {
if (!isOpen() || !(flags_ & O_READ)) goto fail;
// max bytes left in file
if (nbyte >= (fileSize_ - curPosition_)) {
nbyte = fileSize_ - curPosition_;
}
NOMORE(nbyte, fileSize_ - curPosition_);
// amount left to read
toRead = nbyte;
while (toRead > 0) {
@ -1077,7 +1076,7 @@ int16_t SdBaseFile::read(void* buf, uint16_t nbyte) {
uint16_t n = toRead;
// amount to be read from current block
if (n > (512 - offset)) n = 512 - offset;
NOMORE(n, 512 - offset);
// no buffering needed if n == 512
if (n == 512 && block != vol_->cacheBlockNumber()) {
@ -1758,7 +1757,7 @@ int16_t SdBaseFile::write(const void* buf, uint16_t nbyte) {
uint16_t n = 512 - blockOffset;
// lesser of space and amount to write
if (n > nToWrite) n = nToWrite;
NOMORE(n, nToWrite);
// block for data write
uint32_t block = vol_->clusterStartBlock(curCluster_) + blockOfCluster;