For applications that want to have arbitrary number of isolates call
into native code that may be blocking, we expose the API functions that
allows those native threads to exit an isolate before running
long/blocking code.
Without the ability to exit/re-enter isolate, one may experience
deadlocks as we have a fixed limit on the number of concurrently
executing isolates atm.
In the longer term we may find a way to do this automatically
with low overhead, see [0]. But since those API functions are quite
stable and we already expose e.g. `Dart_{Enter,Exit}Scope`, I don't
see a reason not to expose `Dart_{Enter,Exit}Isolate`.
Difference to original CL:
Do use STL synchronization primitives (as the ones in runtime/bin
are not always available in shared libraries)
[0] Issue https://github.com/dart-lang/sdk/issues/51261
Issue https://github.com/dart-lang/sdk/issues/51254
TEST=ffi{,_2}/dl_api_exit_enter_isolate_test
Change-Id: Id817e8d4edb3db35f029248d62388cbd0682001d
Reviewed-on: https://dart-review.googlesource.com/c/sdk/+/294980
Reviewed-by: Daco Harkes <dacoharkes@google.com>
This reverts commit a2512819f8.
Reason for revert: FFI tests fail to link on Windows, fail to load on product-mode Android
Original change's description:
> [vm] Expose Dart_{CurrentIsolate,ExitIsolate,EnterIsolate}
>
> For applications that want to have arbitrary number of isolates call
> into native code that may be blocking, we expose the API functions that
> allows those native threads to exit an isolate before running
> long/blocking code.
>
> Without the ability to exit/re-enter isolate, one may experience
> deadlocks as we have a fixed limit on the number of concurrently
> executing isolates atm.
>
> In the longer term we may find a way to do this automatically
> with low overhead, see [0]. But since those API functions are quite
> stable and we already expose e.g. `Dart_{Enter,Exit}Scope`, I don't
> see a reason not to expose `Dart_{Enter,Exit}Isolate`.
>
> [0] Issue https://github.com/dart-lang/sdk/issues/51261
>
> Issue https://github.com/dart-lang/sdk/issues/51254
>
> TEST=ffi{,_2}/dl_api_exit_enter_isolate_test
>
> Change-Id: I91c772ca962fddb87919663fea07939a498fa205
> Reviewed-on: https://dart-review.googlesource.com/c/sdk/+/292722
> Commit-Queue: Martin Kustermann <kustermann@google.com>
> Reviewed-by: Daco Harkes <dacoharkes@google.com>
> Reviewed-by: Ryan Macnak <rmacnak@google.com>
Change-Id: I05ad5b9ce24754a68693160e470f8eb71a812c75
No-Presubmit: true
No-Tree-Checks: true
No-Try: true
Reviewed-on: https://dart-review.googlesource.com/c/sdk/+/294860
Auto-Submit: Ryan Macnak <rmacnak@google.com>
Commit-Queue: Rubber Stamper <rubber-stamper@appspot.gserviceaccount.com>
Bot-Commit: Rubber Stamper <rubber-stamper@appspot.gserviceaccount.com>
For applications that want to have arbitrary number of isolates call
into native code that may be blocking, we expose the API functions that
allows those native threads to exit an isolate before running
long/blocking code.
Without the ability to exit/re-enter isolate, one may experience
deadlocks as we have a fixed limit on the number of concurrently
executing isolates atm.
In the longer term we may find a way to do this automatically
with low overhead, see [0]. But since those API functions are quite
stable and we already expose e.g. `Dart_{Enter,Exit}Scope`, I don't
see a reason not to expose `Dart_{Enter,Exit}Isolate`.
[0] Issue https://github.com/dart-lang/sdk/issues/51261
Issue https://github.com/dart-lang/sdk/issues/51254
TEST=ffi{,_2}/dl_api_exit_enter_isolate_test
Change-Id: I91c772ca962fddb87919663fea07939a498fa205
Reviewed-on: https://dart-review.googlesource.com/c/sdk/+/292722
Commit-Queue: Martin Kustermann <kustermann@google.com>
Reviewed-by: Daco Harkes <dacoharkes@google.com>
Reviewed-by: Ryan Macnak <rmacnak@google.com>
Changes Dart_NewWeakPersistentHandle to no longer auto delete the
weak persistent handle.
Changes the signatures of WeakPersistentHandleFinalizers to no longer
have access to the handle.
Flutter PR: https://github.com/flutter/engine/pull/19843
g3 presubmit: cl/318028238
Issue: https://github.com/dart-lang/sdk/issues/42312
TEST=runtime/vm/dart_api_impl_test.cc
Change-Id: I3f77db9954d9486759f903b78c03a494f73c68ba
Cq-Include-Trybots:dart/try:vm-ffi-android-debug-arm-try,vm-ffi-android-debug-arm64-try,app-kernel-linux-debug-x64-try,vm-kernel-linux-debug-ia32-try,vm-kernel-win-debug-x64-try,vm-kernel-win-debug-ia32-try,vm-kernel-precomp-linux-debug-x64-try,vm-kernel-precomp-android-release-arm64-try,vm-kernel-asan-linux-release-x64-try,vm-kernel-msan-linux-release-x64-try,vm-kernel-precomp-msan-linux-release-x64-try,vm-kernel-linux-release-simarm-try,vm-kernel-linux-release-simarm64-try,vm-kernel-precomp-android-release-arm_x64-try,vm-kernel-precomp-obfuscate-linux-release-x64-try,dart-sdk-linux-try,analyzer-analysis-server-linux-try,analyzer-linux-release-try,front-end-linux-release-x64-try,vm-kernel-precomp-win-release-x64-try,vm-kernel-mac-debug-x64-try,vm-precomp-ffi-qemu-linux-release-arm-try,vm-kernel-nnbd-linux-debug-x64-try,analyzer-nnbd-linux-release-try,front-end-nnbd-linux-release-x64-try
Reviewed-on: https://dart-review.googlesource.com/c/sdk/+/151525
Commit-Queue: Daco Harkes <dacoharkes@google.com>
Reviewed-by: Ryan Macnak <rmacnak@google.com>
Reviewed-by: Martin Kustermann <kustermann@google.com>
Introduces Dart_NewFinalizableHandle which does auto delete itself,
but does not allow accessing the weak referenced object.
Issue: https://github.com/dart-lang/sdk/issues/42312
Change-Id: I24ea732925122c453213c4fa3f629761c352f838
Cq-Include-Trybots:dart/try:vm-ffi-android-debug-arm-try,vm-ffi-android-debug-arm64-try,app-kernel-linux-debug-x64-try,vm-kernel-linux-debug-ia32-try,vm-kernel-win-debug-x64-try,vm-kernel-win-debug-ia32-try,vm-kernel-precomp-linux-debug-x64-try,vm-dartkb-linux-release-x64-abi-try,vm-kernel-precomp-android-release-arm64-try,vm-kernel-asan-linux-release-x64-try,vm-kernel-msan-linux-release-x64-try,vm-kernel-precomp-msan-linux-release-x64-try,vm-kernel-linux-release-simarm-try,vm-kernel-linux-release-simarm64-try,vm-kernel-precomp-android-release-arm_x64-try,vm-kernel-precomp-obfuscate-linux-release-x64-try,dart-sdk-linux-try,analyzer-analysis-server-linux-try,analyzer-linux-release-try,front-end-linux-release-x64-try,vm-kernel-precomp-win-release-x64-try,vm-kernel-mac-debug-x64-try,vm-precomp-ffi-qemu-linux-release-arm-try,vm-kernel-nnbd-linux-debug-x64-try,analyzer-nnbd-linux-release-try,front-end-nnbd-linux-release-x64-try
Reviewed-on: https://dart-review.googlesource.com/c/sdk/+/154695
Reviewed-by: Ryan Macnak <rmacnak@google.com>
Reviewed-by: Martin Kustermann <kustermann@google.com>
This CL introduces dart_api_dl.h which exposes a subset of dart_api.h
and dart_native_api.h for dynamic linking at runtime through the FFI.
Dynamic linking is done through including dart_api_dl.cc in a shared
library and passing NativeApi.initializeApiDLData to the init function.
This CL also includes Native API versioning to deal with possible
version skew between native api version against which native libraries
are compiled and the version in the DartVM the code is run on.
The subset of symbols in the CL includes handle related symbols, error
related symbols, handle scope symbols, and native port sumbols.
Design: http://go/dart-ffi-expose-dart-api
Closes: https://github.com/dart-lang/sdk/issues/40607
Closes: https://github.com/dart-lang/sdk/issues/36858
Closes: https://github.com/dart-lang/sdk/issues/41319
Closes: https://github.com/flutter/flutter/issues/46887
Closes: https://github.com/flutter/flutter/issues/47061
Misc:
Closes: https://github.com/dart-lang/sdk/issues/42260
Change-Id: I9e557808dbc99b341f23964cbddbb05f26d7a6c5
Cq-Include-Trybots: luci.dart.try:vm-ffi-android-debug-arm-try,vm-ffi-android-debug-arm64-try,app-kernel-linux-debug-x64-try,vm-kernel-linux-debug-ia32-try,vm-kernel-win-debug-x64-try,vm-kernel-win-debug-ia32-try,vm-kernel-precomp-linux-debug-x64-try,vm-dartkb-linux-release-x64-abi-try,vm-kernel-precomp-android-release-arm64-try,vm-kernel-asan-linux-release-x64-try,vm-kernel-msan-linux-release-x64-try,vm-kernel-precomp-msan-linux-release-x64-try,vm-kernel-linux-release-simarm-try,vm-kernel-linux-release-simarm64-try,vm-kernel-precomp-android-release-arm_x64-try,vm-kernel-precomp-obfuscate-linux-release-x64-try,dart-sdk-linux-try,analyzer-analysis-server-linux-try,analyzer-linux-release-try,front-end-linux-release-x64-try,vm-kernel-precomp-win-release-x64-try,vm-kernel-mac-debug-x64-try,vm-precomp-ffi-qemu-linux-release-arm-try,vm-kernel-nnbd-linux-debug-x64-try,analyzer-nnbd-linux-release-try,front-end-nnbd-linux-release-x64-try
Reviewed-on: https://dart-review.googlesource.com/c/sdk/+/145592
Commit-Queue: Daco Harkes <dacoharkes@google.com>
Reviewed-by: Martin Kustermann <kustermann@google.com>
Reviewed-by: Alexander Markov <alexmarkov@google.com>
Liam Appelbe