delta/node.git/src/smalloc.cc, branch master

smalloc: extend user API

2015-02-20T22:19:30+00:00

node::Environment isn't accessible to user APIs, so extend smalloc to
also accept v8::Isolate.

Fixes: 75adde07 "src: remove `node_isolate` from source"
PR-URL: https://github.com/iojs/io.js/pull/905
Reviewed-by: Fedor Indutny

smalloc: fix bad assert for zero length data

2015-01-05T10:24:40+00:00

If the data length passed to smalloc.alloc() the array_length will be
zero, causing an overflow check to fail. This prevents that from
happening.

Signed-off-by: Trevor Norris

smalloc: don't allow to dispose typed arrays

2014-11-26T20:39:02+00:00

PR-URL: https://github.com/joyent/node/pull/8743
Reviewed-by: Trevor Norris

smalloc: fix copyOnto optimization

2014-10-30T22:49:02+00:00

copyOnto is broken when one argument has 1 byte size and the other > 1
byte.

PR-URL: https://github.com/joyent/node/pull/8637
Reviewed-by: Trevor Norris

src: update use of ExternalArrayType constants

2014-10-08T08:34:46+00:00

Continuation of 4809c7a to update the use of v8::ExternalArrayType.

Signed-off-by: Trevor Norris

smalloc: update use of ExternalArrayType constants

2014-10-08T08:06:06+00:00

The constants in enum v8::ExternalArrayType have been changed. The old
values are there for legacy reasons, but it's best to update anyway.

Signed-off-by: Trevor Norris

smalloc: rework double free bug fix

2014-05-23T22:21:35+00:00

Rework the fix from commit 6810132 in a way that removes ~60 lines of
code.

The bug was introduced in commit e87ceb2 (mea culpa) and is at its core
a pointer aliasing bug where sometimes two independent pointers existed
that pointed to the same chunk of heap memory.

Signed-off-by: Trevor Norris

smalloc: prevent double free on dispose()

2014-05-23T10:42:46+00:00

dispose() free's the memory when executed and sets the external array
data to NULL and length to zero.

To prevent the same memory from being free'd twice when the object is
garbage collected we first check if the object's external array data
length == 0. Since alloc() passes NULL to
SetIndexedPropertiesToExternalArrayData() if length == 0 there's no
opportunity for memory leak.

buffer: truncate buffer after string decode

2014-04-10T21:20:43+00:00

When our estimates for a storage size are higher than the actual length
of decoded data, the destination buffer should be truncated. Otherwise
`Buffer::Length` will give misleading information to C++ layer.

fix #7365

Signed-off-by: Fedor Indutny

src: fix up smalloc weak persistent usage

2014-03-16T12:15:34+00:00

Fix a regression that was introduced in commit ce04c726 after the
upgrade to V8 3.24.

The new weak persistent handle API no longer gives you the original
persistent but still requires that you clear it inside your weak
callback.

Rearrange the code in src/smalloc.cc to keep track of the persistent
handle with the least amount of pain and try hard to share as much
code as possible between the 'just free it' and 'invoke my callback'
versions of the smalloc API.

Fixes #7309.