Age | Commit message (Collapse) | Author |
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It is not possible to use the maximum size_t/off_t for the chunks
as that causes sendfile to return einval. 3GB seems to work on all
*nix platforms.
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Ignore fd is a feature used by sendfile to temporarily remove
all driver_select calls on that fd so that another driver can
select on it. It also delays all actions which sends or receives
data in that fd until in the fd is no longer ignored.
Only the controlling_process should use the feature as it is otherwise
possible that the ignore will never be cleaned up and hence create
a memory leak in the driver.
An ignored driver will not detect that an fd has been closed until
it is unignored.
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When there are no async threads sendfile will use the
ready_output select on the socket fd to know when to send
data.
The file_desc will also be put in the sending sendfile_state
which buffers all other commands to that file until the
sendfile is done.
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Move sendfile data to invoke data instead of file_descr.
Remove usage of ready_output when doing a send.
If told to send 0 bytes, file_sendfile now sends the entire file
for linux.
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outputv will always be used so removed output to decrease
confusion.
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Move the command handling to outputv in preparation for
header and trailer inclusion in the sendfile api.
Use the standard efile communication functions for sendfile.
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Created erlang fallback for sendfile in gen_tcp and
moved sendfile from file to gen_tcp. Also created testcases
for testing all different options to sendfile.
For info about how sendfile should work see the BSD man pages
as they contain a more complete API than other *nixes.
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Seems to apply to Sparc and ARM as well (even if not observed).
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* bjorn/dialyzer-warnings:
erlang: Eliminate a clause in aa_mem_data/2 that can never match
Add type info for erlang:system_info({allocator_sizes,ref(),any()})
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* rickard/deprecate-runtime-binding/OTP-9749:
Deprecate erlang:system_flag/2 arguments scheduler_bind_type and cpu_topology
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* rickard/rm-common-runq/OTP-9727:
Remove common run-queue in SMP case
Fix scheduler suspend bug
Conflicts:
erts/emulator/beam/erl_init.c
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The use of erlang:system_flag(scheduler_bind_type, _) and
erlang:system_flag(cpu_topology, _) have been deprecated and scheduled
for removal in erts-5.10/OTP-R16. For more information see the
documentation of erlang:system_flag/2.
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The common run-queue implementation is removed since it is unused,
untested, undocumented, unsupported, and only complicates the code.
A spinlock used by the run-queue management sometimes got heavily
contended. This code has now been rewritten, and the spinlock
has been removed.
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Calls to erlang:system_flag(schedulers_online, N) and/or
erlang:system_flag(multi_scheduling, block|unblock) could cause
internal data used by this functionality to get into an inconsistent
state. When this happened various problems occurred. This bug was
quite hard to trigger, so hopefully no-one has been effected by it.
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aa_mem_data/2 is only called by aa_mem_data/1 and itself.
aa_mem_data/1 called with the argument 'notsup' will never
call aa_mem_data/2. aa_mem_data/2 will only call itself with
a #memory{} record as the first argument. QED.
Noticed-by: Dialyzer.
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* rickard/default-unbound/OTP-9726:
Use unbound schedulers as default
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* rickard/pix-mutex/OTP-9723:
Fix warning when lock-checker is enabled
Replace spinlock with mutex as pix_lock implementation
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* bjorn/deprecate-tuple-funs/OTP-9649:
erts: Warn the first time a tuple fun is called
otp_mibs: Eliminate use of tuple fun
os_mon: Eliminate use of tuple fun
asn1: Eliminate use of tuple fun
parsetools: Eliminate use of tuple fun
mnesia tests: Eliminate use of tuple fun
snmp: Eliminate use of tuple fun
wrap_log_reader_SUITE: Eliminate use of tuple fun
big_SUITE: Eliminate use of tuple fun
file_SUITE: Eliminate use of tuple fun
fprof: Eliminate use of tuple fun
xref_compiler: Eliminate use of tuple fun
shell: Eliminate use of tuple funs
erl_eval: Eliminate use of tuple funs
user_sup: Eliminate use of tuple fun
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* bjorn/llvm-issues/OTP-9712:
INSTALL.md: Update build instructions for Lion
Fix clang linking problem
configure: Define NO_JUMP_TABLE if all we have is llvm-gcc
beam_emu.c: Eliminate warnings when NO_JUMP_TABLE is defined
beam_emu.c: Use the correct void* type for computed gotos
MacOS X: Completely remove obsolete -no-cpp-precomp option
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* tn/inet_drv-fix:
Cleanup - remove unnecesary bracket level and configure for ifreq.ifr_enaddr
Work around gcc linking with own view of default libs on Solaris
Use libdlpi to get physical address
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* siri/sasl/no-warn-missing-sasl/OTP-9738:
Don't use +no_warn_sasl option to systools for bootstrap
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Many test cases provoke printouts similar to:
ERTS_FP_CHECK_INIT at 0x131fd218: detected unhandled FPE at 0x1
Until the problem has been identified and fixed, disable floating
point exceptions by default on Mac OS X.
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Allow Erlang code to use sendfile() where available by wrapping it as
file:sendfile/4 and file:sendfile/2.
sendfile(2) - Linux man page:
"sendfile() copies data between one file descriptor and another.
Because this copying is done within the kernel, sendfile() is more
efficient than the combination of read(2) and write(2), which would
require transferring data to and from user space."
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It seems that a tuple fun was used only because erl_eval:expr/3
did not support passing in a real fun at the time that the test
case was originally written.
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The reload mechanism is an odd feature that does not harmonize
with how module upgrade is otherwise done. We do not want its presence
to hinder future development of code loading and upgrade.
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Also use 64-bit lib when necessary, specify runtime lib path
for secondary dependency libs, and better check before using
SIOCGIFHWADDR.
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* bjorn/erts/remove-useless-variable:
erl_process.c: Remove the redundant variable 'processes_busy'
Update primary bootstrap
otp_internal: Deprecate ssl:pid/1
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There is a static variable called 'processes_busy' in erl_process.c,
which will be incremented but never used.
To confuse things, there is also a global variable with the same
name, but it it is only defined and used if BM_COUNTERS is defined.
In erl_process.c, the global version of 'processes_busy' will be
seen and incremented if BM_COUNTERS is defined.
Remove the static version of 'processes_busy' in erl_process.c,
but keep the global version if BM_COUNTERS is defined.
Noticed-by: Jovi Zhang
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* lukas/erts/large_float_cmp/OTP-9497:
Use CMP_TMP_HEAD_SIZE for C-stack
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Thanks to Tuncer Ayaz
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Caused core dump with gen_udp_SUITE on halfword vm.
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* bjorn/code-loading:
code: Clean up loading of code_server prerequisites
beam_load.c: Add init_iff_file() for verifying the IFF header
beam_code.c: Don't reinvent state initialization and deallocation
beam_load.c: Optimize code:get_chunk/2
beam_load.c: Eliminate memory leak in code:make_stub_module/3
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* bjorn/fix-failing-tests:
erlc_SUITE:arg_overflow/1: Lower number of options for MacOS X Lion
tar_SUITE: Don't do symlink tests on Windows
erlc_SUITE: Fix failing compile_mib/1 test case
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* bjorn/major-release-cleanups:
observer tests: Test compatibility with R13, not R12
emulator tests: Test compatibility with R13, not R12
Teach the compiler the 'r14' option
erl_lint: The types introduced in R12B-5 are no longer "newly introduced"
otp_internal: Stop warning for functions removed in R12 or earlier
Conflicts:
lib/stdlib/src/otp_internal.erl
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Add init_iff_file() for verifying the IFF header. Also let it handle
compressed BEAM files so that it will be done in one place. That means
that code:get_chunk/2 and code:module_md5/1 will now support compressed
BEAM files.
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