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This commit is contained in:
Jesper Wilhelmsson 2023-01-12 22:24:19 +00:00
commit 9887047228
3 changed files with 12 additions and 2 deletions
src/java.base/share/classes/java/lang
ProcessBuilder.javaRuntime.java
foreign
Linker.java

4
src/java.base/share/classes/java/lang/ProcessBuilder.java

@ -1004,6 +1004,8 @@ public final class ProcessBuilder
* be required to start a process on some operating systems.
* As a result, the subprocess may inherit additional environment variable
* settings beyond those in the process builder's {@link #environment()}.
* The minimal set of system dependent environment variables
* may override the values provided in the environment.
*
* <p>If there is a security manager, its
* {@link SecurityManager#checkExec checkExec}
@ -1181,6 +1183,8 @@ public final class ProcessBuilder
* be required to start a process on some operating systems.
* As a result, the subprocess may inherit additional environment variable
* settings beyond those in the process builder's {@link #environment()}.
* The minimal set of system dependent environment variables
* may override the values provided in the environment.
* <p>
* If there is a security manager, its
* {@link SecurityManager#checkExec checkExec}

2
src/java.base/share/classes/java/lang/Runtime.java

@ -569,6 +569,8 @@ public class Runtime {
* be required to start a process on some operating systems.
* As a result, the subprocess may inherit additional environment variable
* settings beyond those in the specified environment.
* The minimal set of system dependent environment variables
* may override the values provided in the environment.
*
* <p>{@link ProcessBuilder#start()} is now the preferred way to
* start a process with a modified environment.

8
src/java.base/share/classes/java/lang/foreign/Linker.java

@ -303,8 +303,8 @@ public sealed interface Linker permits AbstractLinker {
* before it can be overwritten by the Java runtime, or read through conventional means}
* <p>
* A downcall method handle linked with this option will feature an additional {@link MemorySegment}
* parameter directly following the target address parameter. This memory segment must be a
* native segment into which the captured state is written.
* parameter directly following the target address, and optional {@link SegmentAllocator} parameters.
* This memory segment must be a native segment into which the captured state is written.
*
* @param capturedState the names of the values to save.
* @see CaptureCallState#supported()
@ -323,6 +323,10 @@ public sealed interface Linker permits AbstractLinker {
* <p>
* Execution state is captured by a downcall method handle on invocation, by writing it
* to a native segment provided by the user to the downcall method handle.
* For this purpose, a downcall method handle linked with the {@link #captureCallState(String[])}
* option will feature an additional {@link MemorySegment} parameter directly
* following the target address, and optional {@link SegmentAllocator} parameters.
* This parameter represents the native segment into which the captured state is written.
* <p>
* The native segment should have the layout {@linkplain CaptureCallState#layout associated}
* with the particular {@code CaptureCallState} instance used to link the downcall handle.