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Originally implemented by @abedra as part of #306.
In case a write or read times out, we force an error state, because we
can't guarantuee that the next read will get the right data.
Instead we need to reconnect to have a clean-state connection, which is
now easily possible with this method.
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This replaces the old intlen() implementation with a slightly
faster way of counting digits.
Implementation taken from the same place where digits10() in
redis/src/util.c came from.
The old 'intlen' allowed negative inputs, but no usage in hiredis
was passing negative numbers, so that ability is removed. Also,
the new implementation can count higher (uint64_t) instead of
limited to just int as before.
Fixes #295 by replacing implementation
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The strerror_r API has two flavors depending on system options.
The bad flavor uses a static buffer for returning results, so if
you save the pointer from strerror_r, the string you're referencing
becomes useless if anybody else calls strerror_r again
The good flavor does what you expect: it writes the error to your buffer.
This commit uses strerror_r directly if it's a good version or copies
the static buffer into our private buffer if it's a bad version.
Thanks to gemorin for explaining the problem and drafting a fix.
Fixes #239
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Makes hiredis reading functions easier to include in external projects
[fixed all merge conflicts against current version]
Closes #249
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Previously, redisvAppendCommand() would return OOM even with formatting
errors. Now we use OTHER with an error string telling the user the
error was formatting related, not memory related.
This also fixes a potentially worse bug where were would pass error result
of -1 as an actual length to another function taking an unsigned length,
which would result in crash/overallocation/errors. Now for that case,
we just return an error immediately and stop processing the command.
Fixes #177
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If realloc fails, the curargv will be NULL.
Closes #253
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Check whether the obuf or reader is empty: if one of the items is empty,
free the redisContext.
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Flags can occur in any order in format string, so we can't assume any order.
In original code, the redisvFormatCommand can process " %#+d" correctly,
but can't process "%+#d".
Closes #257
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External callers may not know about sdsfree, so let's
give them an easy way to know how to free their sds result.
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[Cleaned up:
- name of function: freeRedis... -> redisFree...
- return value of function (free doesn't return anything)
- parameter type for function.
- we don't need to free a char**, the char** is just
for returning from the assignment functoin.]
Closes #250
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[This introduces some new API functions.]
* Adds new flag to the connection context indicating SO_REUSEADDR
should be set.
* Adds max number of retries constant for when connect() hits
EADDRNOTAVAIL.
* Adds new function, redisAsyncConnectBindWithReuse(), letting
clients enable this functionality.
[Removed trailing whitespace in new header lines.]
Closes #264
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[It doesn't _actually_ matter, but technically
the order argument is: (number of items, size of items)]
Closes #279
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OK, perhaps the second time is a charm. I forgot that I had
hiredis forked from a long time ago, so the initial pull
request was hosed. :)
* Pulled in sdscatfmt() from Redis, and modified it to accept a
size_t (%T) style format specifier.
* Pulled in sdsll2str() and sdsull2str() from Redis (needed by
sdscatfmt).
* Added a new method, redisFormatSdsCommandArgv() which takes
and sds* as the target, rather than char* (and uses sdscatfmt
instead of sprintf for the construction).
I get roughly the following improvement:
Old: 1.044806
New: 0.481620
The benchmark code itself can be found here:
https://gist.github.com/michael-grunder/c92ef31bb632b3d0ad81
Closes #260
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Make redisFree() and freeReplyObject() less surprising by behaving just
like free(). That is, don't crash when passing in NULL.
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SDS is now broken out of Redis into its own project, so include
the latest version from the SDS repo.
This is a backport of the Redis commit doing the same to the bundled hiredis:
https://github.com/antirez/redis/commit/320fa02b9b48ee1c63d88db6344fc0d328e24853
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Closes #202
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These allows for easier integration of hiredis with external
code that wants to manage its fds, say for instance in a pool.
Closes #223
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Some environments require binding to specific source addresses instead
of letting the system determine which IP a connection should originate
from.
Closes #233
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The struct timeval argument in redisConnectWithTimeout(),
redisConnectUnixWithTimeout(), redisSetTimeout(),
redisContextSetTimeout(), redisContextConnectTcp()
and redisContextConnectUnix() is never modified and can
therefore be marked as const.
Signed-off-by: Noah Williamsson <noah.williamsson@gmail.com>
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constify: constify some variables / functions
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Closes #121.
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Make Connection KeepAlive being optional instead of default.
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Prevent hiredis from crashing on memory allocation failure
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Updated documentation and examples accordingly.
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It was verified experimentally that this value, on Linux kernels, provides
better performances compared to the 2k value. However larger values
apparently don't produce any noticeable effect on performances.
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Hiredis can handle multi bulk replies with a fixed (hardcoded) level of
nesting. This should be changed in the future in order to avoid
hardcoded limits. As a quick fix this commit moves the max nesting from 2
to 7, so that there are no problems when processing replies from the SLOWLOG
command, from Redis Sentinel, or generated by Redis Lua Scripts (that are
allowed to generate replies with any level of nesting).
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Hiredis used to free unused redisReader buffers bigger than 16k. Now
this limit is configurable (see the documentation updated by this commit)
in order to allow working with big payloads without incurring to speed
penalty.
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There is no way we can guess the width of the argument when we cannot
infer its type from the format specifier.
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This reverts commit 77540aa31694aa1e14d41f60a0452e49a2fed86a. The change
in buffer strategy is too large to put in a minor release. It is put in
a separate branch in the meantime, so it can be refined and released
together with a minor version bump.
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This is done by only truncating the read buffer once a full reply has
been read. The buffer is no longer truncated halfway through reading a
reply. In addition: pass offset/length of protocol and content via the
read tasks.
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