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add flush method

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This commit is contained in:
Jorj Bauer 2022-01-07 12:50:13 -05:00
parent b2e36b4dfe
commit da8910cdaf
5 changed files with 21 additions and 2 deletions
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4
filemanager.h
View File

@ -141,7 +141,9 @@ class FileManager {
virtual int write(int8_t fd, const void *buf, int nbyte) = 0;
virtual int read(int8_t fd, void *buf, int nbyte) = 0;
virtual int lseek(int8_t fd, int offset, int whence) = 0;
virtual void flush() = 0;
protected:
volatile unsigned long fileSeekPositions[MAXFILES];
char cachedNames[MAXFILES][MAXPATH];

5
nix/nix-filemanager.cpp
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@ -290,3 +290,8 @@ int NixFileManager::lseek(int8_t fd, int offset, int whence)
exit(1); // this is an error condition we need to find and fix if it happens
return -1;
};
void NixFileManager::flush()
{
// No files are kept open, so there's nothing to flush
}

1
nix/nix-filemanager.h
View File

@ -26,6 +26,7 @@ class NixFileManager : public FileManager {
virtual int read(int8_t fd, void *buf, int nbyte);
virtual int lseek(int8_t fd, int offset, int whence);
virtual void flush();
private:
int8_t numCached;

9
teensy/teensy-filemanager.cpp
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@ -300,3 +300,12 @@ int TeensyFileManager::lseek(int8_t fd, int offset, int whence)
return -1;
};
void TeensyFileManager::flush()
{
if (cacheFd == -1)
return;
cacheFile.close();
cacheFd = -1;
}

4
teensy/teensy-filemanager.h
View File

@ -27,7 +27,9 @@ class TeensyFileManager : public FileManager {
virtual int write(int8_t fd, const void *buf, int nbyte);
virtual int read(int8_t fd, void *buf, int nbyte);
virtual int lseek(int8_t fd, int offset, int whence);
virtual void flush();
private:
bool _prepCache(int8_t fd);