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more error checking

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This commit is contained in:
georges 2000-10-20 04:59:33 +00:00
parent 466704c470
commit c91586a66f
1 changed files with 24 additions and 22 deletions
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28
panda/src/ipc/ipc_nspr_traits.h
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@ -225,34 +225,36 @@ public:
INLINE void close(void) { INLINE void close(void) {
if (_fhandle != (PRFileDesc *)NULL) { PR_Close(_fhandle); _fhandle = (PRFileDesc *)NULL; } if (_fhandle != (PRFileDesc *)NULL) { PR_Close(_fhandle); _fhandle = (PRFileDesc *)NULL; }
} }
INLINE bool empty(void){ INLINE bool empty(void){ return (PR_Available(_fhandle) <= 0); }
return (PR_Available(_fhandle) <= 0);
}
INLINE int readin(string &block, int numBytes) { INLINE int readin(string &block, int numBytes) {
//Don't try and read less than nothing //Don't try and read less than nothing
if (_fhandle == (PRFileDesc *)NULL)
return 0;
nassertr(numBytes >= 0, 0); nassertr(numBytes >= 0, 0);
int numRead;
char* temp = new char[numBytes]; char* temp = new char[numBytes];
if (_fhandle != (PRFileDesc *)NULL){ int numRead = PR_Read(_fhandle, temp, numBytes);
numRead = PR_Read(_fhandle, temp, numBytes);
if(numRead<=0) { if(numRead<=0) {
cerr << "PR_Read() in libnspr failed!\n"; cerr << "PR_Read() in libnspr failed!\n";
delete temp;
return 0; return 0;
} }
block.assign(temp, numRead); block.assign(temp, numRead);
delete temp; delete temp;
return numRead; return numRead;
} }
return 0;
}
INLINE int writeout(const string &block) { INLINE int writeout(const string &block) {
//Make sure there is something to write out nassertr(block.size() > 0, 0); //Make sure there is something to write out
nassertr(block.size() > 0, 0); nassertr(block.data() != NULL, 0);
if (_fhandle != (PRFileDesc *)NULL) {
if (_fhandle == (PRFileDesc *)NULL)
return 0;
return PR_Write(_fhandle, (void*)block.data(), block.size()); return PR_Write(_fhandle, (void*)block.data(), block.size());
} }
return 0;
}
private: private:
string _filename; string _filename;
PRFileDesc* _fhandle; PRFileDesc* _fhandle;