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assembleFNT() can no longer fail

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This commit is contained in:
Yann Collet 2019-11-26 15:44:33 -08:00
parent aaab618ae9
commit 96ee20758c
2 changed files with 39 additions and 31 deletions
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11
programs/util.c
View File

@ -366,7 +366,7 @@ FileNamesTable*
UTIL_assembleFileNamesTable(const char** filenames, size_t tableSize, char* buf)
{
FileNamesTable* const table = (FileNamesTable*) malloc(sizeof(*table));
if(!table) return NULL;
CONTROL(table != NULL);
table->fileNames = filenames;
table->buf = buf;
table->tableSize = tableSize;
@ -665,7 +665,8 @@ UTIL_createExpandedFNT(const char** inputNames, size_t nbIfns, int followLinks)
pos += strlen(fileNamesTable[ifnNb]) + 1;
}
{ FileNamesTable* const fnt = UTIL_assembleFileNamesTable(fileNamesTable, nbFiles, buf);
#ifdef __clang_analyzer__
#if 0 && defined(__clang_analyzer__)
/* note : this trick might not be necessary anymore */
/* scan-build does not understand ownership transfer.
* In _some_ versions, it believes that there is a leak of @buf and @fileNamesTable
* on leaving the function, which is not the case,
@ -761,8 +762,7 @@ int UTIL_countPhysicalCores(void)
}
} else {
done = TRUE;
}
}
} }
ptr = buffer;
@ -874,8 +874,7 @@ int UTIL_countPhysicalCores(void)
} else if (ferror(cpuinfo)) {
/* fall back on the sysconf value */
goto failed;
}
}
} }
if (siblings && cpu_cores) {
ratio = siblings / cpu_cores;
}

49
programs/util.h
View File

@ -25,6 +25,7 @@ extern "C" {
#include <sys/stat.h> /* stat, chmod */
#include "mem.h" /* U64 */
/*-************************************************************
* Avoid fseek()'s 2GiB barrier with MSVC, macOS, *BSD, MinGW
***************************************************************/
@ -126,17 +127,8 @@ const char* UTIL_getFileExtension(const char* infilename);
* Lists of Filenames
******************************************/
#ifdef _WIN32
# define UTIL_HAS_CREATEFILELIST
#elif defined(__linux__) || (PLATFORM_POSIX_VERSION >= 200112L) /* opendir, readdir require POSIX.1-2001 */
# define UTIL_HAS_CREATEFILELIST
#else
/* do not define UTIL_HAS_CREATEFILELIST */
#endif /* #ifdef _WIN32 */
typedef struct
{
const char** fileNames;
{ const char** fileNames;
char* buf; /* fileNames are stored in this buffer (or are read-only) */
size_t tableSize; /* nb of fileNames */
size_t tableCapacity;
@ -153,7 +145,9 @@ UTIL_createFileNamesTable_fromFileName(const char* inputFileName);
/*! UTIL_assembleFileNamesTable() :
* This function takes ownership of its arguments, @filenames and @buf,
* and store them inside the created object.
* @return : FileNamesTable*, or NULL, if allocation fails.
* note : this function never fails,
* it will rather exit() the program if internal allocation fails.
* @return : resulting FileNamesTable* object.
*/
FileNamesTable*
UTIL_assembleFileNamesTable(const char** filenames, size_t tableSize, char* buf);
@ -185,15 +179,8 @@ void UTIL_expandFNT(FileNamesTable** fnt, int followLinks);
* @return : a FileNamesTable* object,
* or NULL in case of error
*/
FileNamesTable* UTIL_createFNT_fromROTable(const char** filenames, size_t nbFilenames);
/*! UTIL_createExpandedFNT() :
* read names from @filenames, and expand those corresponding to directories
* @return : an expanded FileNamesTable*, where each name is a file
* or NULL in case of error
*/
FileNamesTable* UTIL_createExpandedFNT(const char** filenames, size_t nbFilenames, int followLinks);
FileNamesTable*
UTIL_createFNT_fromROTable(const char** filenames, size_t nbFilenames);
/*! UTIL_allocateFileNamesTable() :
* Allocates a table of const char*, to insert read-only names later on.
@ -212,6 +199,28 @@ FileNamesTable* UTIL_allocateFileNamesTable(size_t tableSize);
void UTIL_refFilename(FileNamesTable* fnt, const char* filename);
/* UTIL_createExpandedFNT() is only active if UTIL_HAS_CREATEFILELIST is defined.
* Otherwise, UTIL_createExpandedFNT() is a shell function which does nothing
* apart from displaying a warning message.
*/
#ifdef _WIN32
# define UTIL_HAS_CREATEFILELIST
#elif defined(__linux__) || (PLATFORM_POSIX_VERSION >= 200112L) /* opendir, readdir require POSIX.1-2001 */
# define UTIL_HAS_CREATEFILELIST
#else
/* do not define UTIL_HAS_CREATEFILELIST */
#endif
/*! UTIL_createExpandedFNT() :
* read names from @filenames, and expand those corresponding to directories.
* links are followed or not depending on @followLinks directive.
* @return : an expanded FileNamesTable*, where each name is a file
* or NULL in case of error
*/
FileNamesTable*
UTIL_createExpandedFNT(const char** filenames, size_t nbFilenames, int followLinks);
/*-****************************************
* System
******************************************/