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add comments to the class
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‎code/logic/fossil/io/stream.h‎

Lines changed: 144 additions & 1 deletion
Original file line numberDiff line numberDiff line change
@@ -344,7 +344,6 @@ namespace fossil {
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*/
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class Stream {
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public:
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// Existing functions...
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349348
/**
350349
* Reopen a stream with a new file.
@@ -361,6 +360,17 @@ namespace fossil {
361360
return fossil_fstream_freopen(stream, filename, mode, file);
362361
}
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/**
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* Reopen a stream with a new file.
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*
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* This function reopens a stream with a new file.
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*
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* @param stream Pointer to the fossil_fstream_t structure to reopen.
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* @param filename The name of the file to reopen.
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* @param mode The mode in which to reopen the file.
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* @param file Pointer to the FILE structure to reopen.
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* @return 0 on success, non-zero on failure.
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*/
364374
static int32_t freopen(fossil_fstream_t *stream, const std::string &filename, const std::string &mode, FILE *file) {
365375
return fossil_fstream_freopen(stream, filename.c_str(), mode.c_str(), file);
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}
@@ -379,6 +389,16 @@ namespace fossil {
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return fossil_fstream_open(stream, filename, mode);
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}
381391

392+
/**
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* Open a stream for file operations.
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*
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* This function opens a file stream, allowing read or write operations on the specified file.
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*
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* @param stream Pointer to the fossil_fstream_t structure to store the opened stream.
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* @param filename The name of the file to be opened.
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* @param mode The mode in which to open the file (e.g., "r" for read, "w" for write).
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* @return 0 on success, non-zero on failure.
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*/
382402
static int32_t open(fossil_fstream_t *stream, const std::string &filename, const std::string &mode) {
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return fossil_fstream_open(stream, filename.c_str(), mode.c_str());
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}
@@ -490,6 +510,15 @@ namespace fossil {
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return fossil_fstream_save(stream, new_filename);
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}
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/**
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* Save an open stream to a new file.
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*
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* This function saves the contents of an open stream to a new file.
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*
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* @param stream Pointer to the fossil_fstream_t structure to be saved.
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* @param new_filename The name of the new file to save to.
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* @return 0 on success, non-zero on failure.
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*/
493522
static int32_t save(fossil_fstream_t *stream, const std::string &new_filename) {
494523
return fossil_fstream_save(stream, new_filename.c_str());
495524
}
@@ -507,6 +536,15 @@ namespace fossil {
507536
return fossil_fstream_copy(source_filename, destination_filename);
508537
}
509538

539+
/**
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* Copy a file from the source to the destination.
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*
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* This function copies a file from a source file to a destination file.
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*
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* @param source_filename The name of the source file.
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* @param destination_filename The name of the destination file.
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* @return 0 on success, non-zero on failure.
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*/
510548
static int32_t copy(const std::string &source_filename, const std::string &destination_filename) {
511549
return fossil_fstream_copy(source_filename.c_str(), destination_filename.c_str());
512550
}
@@ -523,6 +561,14 @@ namespace fossil {
523561
return fossil_fstream_remove(filename);
524562
}
525563

564+
/**
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* Remove a file stream.
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*
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* This function removes a file stream.
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*
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* @param filename The name of the file to remove.
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* @return 0 on success, non-zero on failure.
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*/
526572
static int32_t remove(const std::string &filename) {
527573
return fossil_fstream_remove(filename.c_str());
528574
}
@@ -540,6 +586,15 @@ namespace fossil {
540586
return fossil_fstream_rename(old_filename, new_filename);
541587
}
542588

589+
/**
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* Rename a file or directory.
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*
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* This function renames a file or directory.
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*
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* @param old_filename The current name of the file or directory.
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* @param new_filename The new name to assign to the file or directory.
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* @return 0 on success, non-zero on failure.
597+
*/
543598
static int32_t rename(const std::string &old_filename, const std::string &new_filename) {
544599
return fossil_fstream_rename(old_filename.c_str(), new_filename.c_str());
545600
}
@@ -594,6 +649,15 @@ namespace fossil {
594649
return fossil_fstream_rotate(filename, n);
595650
}
596651

652+
/**
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* Rotate a file stream.
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*
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* This function rotates a file stream.
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*
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* @param filename The name of the file to rotate.
658+
* @param n The number of rotations to perform.
659+
* @return 0 on success, non-zero on failure.
660+
*/
597661
static int32_t rotate(const std::string &filename, int32_t n) {
598662
return fossil_fstream_rotate(filename.c_str(), n);
599663
}
@@ -611,6 +675,15 @@ namespace fossil {
611675
return fossil_fstream_backup(filename, backup_suffix);
612676
}
613677

678+
/**
679+
* Create a backup of a file with a specified backup suffix.
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*
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* This function creates a backup of a file with the given suffix.
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*
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* @param filename The name of the file to create a backup for.
684+
* @param backup_suffix The suffix to be appended to the backup file.
685+
* @return 0 on success, non-zero on failure.
686+
*/
614687
static int32_t backup(const std::string &filename, const std::string &backup_suffix) {
615688
return fossil_fstream_backup(filename.c_str(), backup_suffix.c_str());
616689
}
@@ -627,6 +700,14 @@ namespace fossil {
627700
return fossil_fstream_file_exists(filename);
628701
}
629702

703+
/**
704+
* Check if a file exists.
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*
706+
* This function checks if a file exists.
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*
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* @param filename The name of the file to check for existence.
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* @return 1 if the file exists, 0 if not.
710+
*/
630711
static int32_t file_exists(const std::string &filename) {
631712
return fossil_fstream_file_exists(filename.c_str());
632713
}
@@ -655,6 +736,14 @@ namespace fossil {
655736
return fossil_fstream_delete(filename);
656737
}
657738

739+
/**
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* Delete a file.
741+
*
742+
* This function deletes a file.
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*
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* @param filename The name of the file to be deleted.
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* @return 0 on success, non-zero on failure.
746+
*/
658747
static int32_t delete_file(const std::string &filename) {
659748
return fossil_fstream_delete(filename.c_str());
660749
}
@@ -671,6 +760,14 @@ namespace fossil {
671760
return fossil_fstream_get_type(filename);
672761
}
673762

763+
/**
764+
* Get the type of a file stream.
765+
*
766+
* This function retrieves the type of a file stream.
767+
*
768+
* @param filename The name of the file to get the type of.
769+
* @return The type of the file stream.
770+
*/
674771
static int get_type(const std::string &filename) {
675772
return fossil_fstream_get_type(filename.c_str());
676773
}
@@ -687,6 +784,14 @@ namespace fossil {
687784
return fossil_fstream_is_readable(filename);
688785
}
689786

787+
/**
788+
* Check if a file is readable.
789+
*
790+
* This function checks if a file has read permissions.
791+
*
792+
* @param filename The name of the file to check.
793+
* @return 1 if readable, 0 otherwise.
794+
*/
690795
static int32_t is_readable(const std::string &filename) {
691796
return fossil_fstream_is_readable(filename.c_str());
692797
}
@@ -703,6 +808,14 @@ namespace fossil {
703808
return fossil_fstream_is_writable(filename);
704809
}
705810

811+
/**
812+
* Check if a file is writable.
813+
*
814+
* This function checks if a file has write permissions.
815+
*
816+
* @param filename The name of the file to check.
817+
* @return 1 if writable, 0 otherwise.
818+
*/
706819
static int32_t is_writable(const std::string &filename) {
707820
return fossil_fstream_is_writable(filename.c_str());
708821
}
@@ -719,6 +832,14 @@ namespace fossil {
719832
return fossil_fstream_is_executable(filename);
720833
}
721834

835+
/**
836+
* Check if a file is executable.
837+
*
838+
* This function checks if a file has execute permissions.
839+
*
840+
* @param filename The name of the file to check.
841+
* @return 1 if executable, 0 otherwise.
842+
*/
722843
static int32_t is_executable(const std::string &filename) {
723844
return fossil_fstream_is_executable(filename.c_str());
724845
}
@@ -736,6 +857,15 @@ namespace fossil {
736857
return fossil_fstream_set_permissions(filename, mode);
737858
}
738859

860+
/**
861+
* Set file permissions.
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*
863+
* This function sets the permissions for a file.
864+
*
865+
* @param filename The name of the file to set permissions for.
866+
* @param mode The permissions to set (POSIX: chmod-style).
867+
* @return 0 on success, non-zero on failure.
868+
*/
739869
static int32_t set_permissions(const std::string &filename, int32_t mode) {
740870
return fossil_fstream_set_permissions(filename.c_str(), mode);
741871
}
@@ -753,10 +883,23 @@ namespace fossil {
753883
return fossil_fstream_get_permissions(filename, mode);
754884
}
755885

886+
/**
887+
* Get file permissions.
888+
*
889+
* This function retrieves the permissions of a file.
890+
*
891+
* @param filename The name of the file to retrieve permissions for.
892+
* @param mode Pointer to store the retrieved permissions (POSIX style).
893+
* @return 0 on success, non-zero on failure.
894+
*/
756895
static int32_t get_permissions(const std::string &filename, int32_t *mode) {
757896
return fossil_fstream_get_permissions(filename.c_str(), mode);
758897
}
759898

899+
};
900+
901+
} // namespace io
902+
760903
} // namespace fossil
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762905
#endif

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