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added some docs as per request

Browse Source 
http://panda3d.org/phpbb2/viewtopic.php?t=5324
This commit is contained in:
treeform 2008-12-21 19:16:24 +00:00
parent 98d970ed2c
commit 3a14549dd7
1 changed files with 43 additions and 34 deletions
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19
panda/src/express/patchfile.cxx
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@ -96,7 +96,7 @@ const PN_uint32 Patchfile::_HASH_MASK = (PN_uint32(1) << Patchfile::_HASH_BITS)
////////////////////////////////////////////////////////////////////
// Function: Patchfile::Constructor
// Access: Public
// Description:
// Description: Create a patch file and initializes internal data
////////////////////////////////////////////////////////////////////
Patchfile::
Patchfile() {
@ -108,7 +108,7 @@ Patchfile() {
////////////////////////////////////////////////////////////////////
// Function: Patchfile::Constructor
// Access: Public
// Description:
// Description: Create patch file with buffer to patch
////////////////////////////////////////////////////////////////////
Patchfile::
Patchfile(PT(Buffer) buffer) {
@ -150,7 +150,7 @@ Patchfile::
////////////////////////////////////////////////////////////////////
// Function: Patchfile::cleanup
// Access: Private
// Description:
// Description: Closes and clean up internal data structures
////////////////////////////////////////////////////////////////////
void Patchfile::
cleanup() {
@ -185,7 +185,7 @@ cleanup() {
// Function: Patchfile::initiate
// Access: Published
// Description: Set up to apply the patch to the file (original
// file and patch are destroyed in the process).
// file and patch are destroyed in the process).
////////////////////////////////////////////////////////////////////
int Patchfile::
initiate(const Filename &patch_file, const Filename &file) {
@ -264,6 +264,13 @@ read_header(const Filename &patch_file) {
// Function: Patchfile::run
// Access: Published
// Description: Perform one buffer's worth of patching
// Returns EU_ok while patching
// Returns EU_success when done
// If error happens will return one of:
// EU_error_abort : Patching has not been initiated
// EU_error_file_invalid : file is corrupted
// EU_error_invalid_checksum : incompatible patch file
// EU_error_write_file_rename : could not rename file
////////////////////////////////////////////////////////////////////
int Patchfile::
run() {
@ -480,7 +487,8 @@ run() {
////////////////////////////////////////////////////////////////////
// Function: Patchfile::apply
// Access: Public
// Description:
// Description: Patches the entire file in one call
// returns true on success and false on error
////////////////////////////////////////////////////////////////////
bool Patchfile::
apply(Filename &patch_file, Filename &file) {
@ -1396,6 +1404,7 @@ tar_writefunc(int, const void *, size_t) {
// For an original file of size M and a new file of
// size N, this algorithm is O(M) in space and
// O(M*N) (worst-case) in time.
// return false on error
////////////////////////////////////////////////////////////////////
bool Patchfile::
build(Filename file_orig, Filename file_new, Filename patch_name) {