[Gpr_To_Absl_Logging] Remove GRPC_API_TRACE .
This will be replaced by GRPC_TRACE_LOG
Closes#37190
COPYBARA_INTEGRATE_REVIEW=https://github.com/grpc/grpc/pull/37190 from tanvi-jagtap:grpc_api_trace_fix 6dae72bc6e69cc5bef2fcc7b87fe4fdfa62e72f6
PiperOrigin-RevId: 652397141
This moves more code out of the monolithic `grpc_xds_client` BUILD target. We still need more work to split it up completely, but this is a nice step in the right direction -- and it unblocks a subsequent PR that I'm working on for xDS authority rewriting.
Closes#37130
COPYBARA_INTEGRATE_REVIEW=https://github.com/grpc/grpc/pull/37130 from markdroth:xds_resource_type_build_refactoring a021d9773c7711b252caf3a53985a46f135b9250
PiperOrigin-RevId: 648742472
Adds a build config - latent_see - that configures a module and some macros to allow recording of latency information through the stack and across threads. One can then use tools that understand the chromium event trace format (eg `ui.perfetto.dev`) to visualize the traces.

Closes#36964
COPYBARA_INTEGRATE_REVIEW=https://github.com/grpc/grpc/pull/36964 from ctiller:latent-see 2c109f95753349900e67f50fddbc94f5711d974f
PiperOrigin-RevId: 647455107
Previously, metadata mutations were made by the picker directly, which meant that they would be applied even if the channel winds up discarding the pick due to the returned subchannel having been disconnected by the time the pick result is returned. This changes the API such that pickers return metadata mutations along with the pick result, so that the mutations won't get applied unless the pick result is actually used.
Closes#36968
COPYBARA_INTEGRATE_REVIEW=https://github.com/grpc/grpc/pull/36968 from markdroth:lb_metadata_api 2765da61214f3ae63da3fdb8e362fac625b51c5a
PiperOrigin-RevId: 645451869
This change brings up the direct channel, and inproc promise based transports.
This work exposed a bug that was very difficult to fix with the current call_filters.cc implementation, so I've substantially revamped that - instead of having a pipe-like object per call element, we now have a big ol' combined state machine for the entire call. It's a touch more code, but substantially easier to reason about individual cases, so I much prefer this form (it's also a slight memory improvement: 12 bytes total to track call state, and 10 of those are wakeup bitmasks...).
Closes#36734
COPYBARA_INTEGRATE_REVIEW=https://github.com/grpc/grpc/pull/36734 from ctiller:transport-refs-9 3e2a80b40d77e093c3d1aabedc16015478ee4bee
PiperOrigin-RevId: 644034593
Change was created by the release automation script. See go/grpc-release.
Closes#36892
COPYBARA_INTEGRATE_REVIEW=https://github.com/grpc/grpc/pull/36892 from XuanWang-Amos:bump_dev_version_202406112301 9b2898d716af0d8dcd90aab23e35959cd6c38855
PiperOrigin-RevId: 643027546
Also made some minor improvements to the `ConfigSelector` API.
Closes#36877
COPYBARA_INTEGRATE_REVIEW=https://github.com/grpc/grpc/pull/36877 from markdroth:client_channel_v3_dynamic_filters 6a539fe3200dd81b8ca6fd1aa3955ecc8f75666a
PiperOrigin-RevId: 642755276
All TraceFlags are now configured in `src/core/lib/debug/trace_flags.yaml`. The format is:
```
my_flag:
default: false # the default value; default=false
description: Some Description
debug_only: false # debug_only flags only work in debug builds; default=false
internal: false # internal flags will not show up in documentation; default=false
```
To regenerate the trace flag source code, run `tools/codegen/core/gen_trace_flags.py` (requires mako). This script is also run when sanity checking.
This PR also adds two new features:
### Glob-based flag configuration
Trace flag configuration now supports `?` (single wildcard character) and `*` (one or more wildcard characters). For example, using `GRPC_TRACE='event_engine*'` will enable all flags that match that glob. It expands to:
* event_engine
* event_engine_client_channel_resolver
* event_engine_dns
* event_engine_endpoint
* event_engine_endpoint_data
* event_engine_poller
### A cleaner trace-logging macro in abseil logging format
If your goal is only to add log statements when the `fault_injection_filter` trace flag is enabled, you can use the macro:
```
GRPC_TRACE_LOG(fault_injection, INFO) << "Filtered:" << 42;
```
When the trace flag is enabled, the the log will show something like this:
```
I0000 00:00:1715733657.430042 16 file.cc:174] Filtered:42
```
----
Note: just like with the gpr_log to abseil logging conversion, the pre-existing trace logging usages can be replaced with the new tracing macro across multiple PRs.
Closes#36576
PiperOrigin-RevId: 641295215
Also rename the class from `MetadataQuery` to `GcpMetadataQuery`.
Closes#36789
COPYBARA_INTEGRATE_REVIEW=https://github.com/grpc/grpc/pull/36789 from markdroth:reorg_gcp_metadata_query d2b84f46be386b796690fc47bf27c42642c6408b
PiperOrigin-RevId: 639256546
The following attributes were completely unused:
- kOffset
- kIndex
- kSize
- kFilename
- kKey
- kValue
The following attributes were added but never programmatically accessed, and I've moved them into the status messages themselves, which is another step toward #22883:
- kErrorNo
- kTsiCode
- kWsaError
- kHttpStatus
- kOsError
- kSyscall
- kTargetAddress
- kRawBytes
- kTsiError
Closes#36523
COPYBARA_INTEGRATE_REVIEW=https://github.com/grpc/grpc/pull/36523 from markdroth:grpc_error_attribute_cleanup b289c399fed67322ac4f3de24b5cec5e81663886
PiperOrigin-RevId: 639147583
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Closes#36509
COPYBARA_INTEGRATE_REVIEW=https://github.com/grpc/grpc/pull/36509 from ctiller:transport-refs-3 2771a2b0e1b4af4c5622839a5a767388d13b1074
PiperOrigin-RevId: 633240374
Change was created by the release automation script. See go/grpc-release.
Closes#36544
COPYBARA_INTEGRATE_REVIEW=https://github.com/grpc/grpc/pull/36544 from yashykt:bump_dev_version_202405061956 69ee5c869efa544c0ce768792750720df9d11f07
PiperOrigin-RevId: 631187829
[grpc][Gpr_To_Absl_Logging] Migrating from gpr to absl logging GPR_ASSERT
Replacing GPR_ASSERT with absl CHECK.
These changes have been made using string replacement and regex.
Will not be replacing all instances of CHECK with CHECK_EQ , CHECK_NE etc because there are too many callsites. Only ones which are doable using very simple regex with least chance of failure will be replaced.
Given that we have 5000+ instances of GPR_ASSERT to edit, Doing it manually is too much work for both the author and reviewer.
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Closes#36468
COPYBARA_INTEGRATE_REVIEW=https://github.com/grpc/grpc/pull/36468 from tanvi-jagtap:tjagtap_src_core_lib_gprpp f7ed931db16acd609e851d75f546377661b2705f
PiperOrigin-RevId: 630978821
This should be able to unblock using grpc on vision os, will add tests later
Closes#36476
COPYBARA_INTEGRATE_REVIEW=https://github.com/grpc/grpc/pull/36476 from HannahShiSFB:support-visionos edbde32d230560bbbb6cabfb21d90242cc40387d
PiperOrigin-RevId: 630173448
[grpc][Gpr_To_Absl_Logging] Migrating from gpr to absl logging GPR_ASSERT
Replacing GPR_ASSERT with absl CHECK.
These changes have been made using string replacement and regex.
Will not be replacing all instances of CHECK with CHECK_EQ , CHECK_NE etc because there are too many callsites. Only ones which are doable using very simple regex with least chance of failure will be replaced.
Given that we have 5000+ instances of GPR_ASSERT to edit, Doing it manually is too much work for both the author and reviewer.
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Closes#36467
COPYBARA_INTEGRATE_REVIEW=https://github.com/grpc/grpc/pull/36467 from tanvi-jagtap:tjagtap_src_core_lib 30d3ff5bbba3e60b2bd6b3961b6d46cbf375383f
PiperOrigin-RevId: 629995895
Also begin to eliminate `CallContext` in favor of just exposing `Call` - ultimately there's not really a need to introduce two types here, so I'm going to wind that idea back over a few PRs.
I've avoided making this an experiment as the changes required were quite structural.
Closes#36477
COPYBARA_INTEGRATE_REVIEW=https://github.com/grpc/grpc/pull/36477 from ctiller:deadline-time 9856eeebe67d2ee680c05ae5426e8c94dd4c4d1c
PiperOrigin-RevId: 629599230
[grpc][Gpr_To_Absl_Logging] Migrating from gpr to absl logging GPR_ASSERT
Replacing GPR_ASSERT with absl CHECK.
These changes have been made using string replacement and regex.
Will not be replacing all instances of CHECK with CHECK_EQ , CHECK_NE etc because there are too many callsites. Only ones which are doable using very simple regex with least chance of failure will be replaced.
Given that we have 5000+ instances of GPR_ASSERT to edit, Doing it manually is too much work for both the author and reviewer.
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Closes#36466
COPYBARA_INTEGRATE_REVIEW=https://github.com/grpc/grpc/pull/36466 from tanvi-jagtap:tjagtap_src_core_lob_event_engine d101d5f70134af60f44626510626f4e76cc5edf9
PiperOrigin-RevId: 629105415
Introduce the interception chain type.
Also introduces the real call-v3 call spine based atop CallFilters.
Closes#36414
COPYBARA_INTEGRATE_REVIEW=https://github.com/grpc/grpc/pull/36414 from ctiller:interception-chain 90c8e969738c1c999db7257c2c24aeb382818c70
PiperOrigin-RevId: 627784183
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Closes#36333
COPYBARA_INTEGRATE_REVIEW=https://github.com/grpc/grpc/pull/36333 from yijiem:bump_dev_version_202404101721 0a7cc5b4b740688b81417ef2da8f93b4c027f3ed
PiperOrigin-RevId: 623878150