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Introduce Variants of Various UTIL Functions that Take Pre-Populated stat_t Structs

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Instead of calling `stat()`, these functions accept the result of a previous
`stat()` call on the file in question, which will allow us to make multiple
decisions around a file without redundant `stat()` calls.
This commit is contained in:
W. Felix Handte
2020-08-05 01:00:06 -04:00
parent b6e24bc4dc
commit 44fa052599
2 changed files with 50 additions and 21 deletions
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programs/util.h
+8 -2
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@@ -120,18 +120,24 @@ extern int g_utilDisplayLevel;
* Returns success (1) or failure (0).
*/
int UTIL_stat(const char* filename, stat_t* statbuf);
int UTIL_statFile(const char* infilename, stat_t* statbuf); /* also check it's a file */
int UTIL_statDir(const char* infilename, stat_t* statbuf); /* also check it's a directory */
/** Also checks that the target is a regular file. */
int UTIL_statFile(const char* infilename, stat_t* statbuf);
/** Also checks that the target is a directory. */
int UTIL_statDir(const char* infilename, stat_t* statbuf);
int UTIL_fileExist(const char* filename);
int UTIL_isRegularFile(const char* infilename);
int UTIL_isRegularFileStat(const stat_t* statbuf); /* same but takes existing statbuf */
int UTIL_isDirectory(const char* infilename);
int UTIL_isDirectoryStat(const stat_t* statbuf); /* same but takes existing statbuf */
int UTIL_isSameFile(const char* file1, const char* file2);
int UTIL_isCompressedFile(const char* infilename, const char *extensionList[]);
int UTIL_isLink(const char* infilename);
int UTIL_isFIFO(const char* infilename);
int UTIL_isFIFOStat(const stat_t* statbuf); /* same but takes existing statbuf */
#define UTIL_FILESIZE_UNKNOWN ((U64)(-1))
U64 UTIL_getFileSize(const char* infilename);
U64 UTIL_getFileSizeStat(const stat_t* statbuf);
U64 UTIL_getTotalFileSize(const char* const * fileNamesTable, unsigned nbFiles);
int UTIL_setFileStat(const char* filename, const stat_t* statbuf);
int UTIL_chmod(char const* filename, mode_t permissions); /*< like chmod, but avoid changing permission of /dev/null */