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https://github.com/genodelabs/genode.git
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libc: tests for components using RPC and select()
This commit is contained in:
Christian Helmuth
parent
0aac473229
commit
f7f18710de
103
repos/libports/run/libc_component.run
Normal file
103
repos/libports/run/libc_component.run
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@ -0,0 +1,103 @@
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#
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# Build
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#
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set build_components {
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core init drivers/timer server/terminal_crosslink
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test/libc_counter test/libc_component
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}
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build $build_components
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create_boot_directory
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#
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# Generate config
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#
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append config {
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<config verbose="yes">
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<parent-provides>
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<service name="ROM"/>
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<service name="RAM"/>
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<service name="PD"/>
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<service name="RM"/>
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<service name="CPU"/>
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<service name="LOG"/>
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</parent-provides>
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<default-route>
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<any-service> <parent/> <any-child/> </any-service>
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</default-route>
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<start name="timer">
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<resource name="RAM" quantum="1M"/>
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<provides> <service name="Timer"/> </provides>
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</start>
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<start name="terminal_crosslink">
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<resource name="RAM" quantum="1M"/>
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<provides> <service name="Terminal"/> </provides>
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</start>
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<start name="test-libc_component">
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<resource name="RAM" quantum="8M"/>
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<provides> <service name="LOG"/> </provides>
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<config ld_verbose="yes">
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<vfs>
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<dir name="dev"> <log/> <terminal/> </dir>
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<dir name="tmp"> <ram/> </dir>
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</vfs>
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<libc stdin="/dev/log" stdout="/dev/log" stderr="/dev/log"/>
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</config>
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</start>
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<start name="counter-terminal">
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<binary name="test-libc_counter-source"/>
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<resource name="RAM" quantum="8M"/>
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<config>
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<vfs>
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<dir name="dev"> <terminal/> <log/> </dir>
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</vfs>
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<libc stdin="/dev/terminal" stdout="/dev/terminal" stderr="/dev/log"/>
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</config>
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</start>
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<start name="counter-log">
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<binary name="test-libc_counter-source"/>
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<resource name="RAM" quantum="8M"/>
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<config>
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<vfs>
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<dir name="dev"> <log/> <log name="log2" label="2"/> </dir>
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</vfs>
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<libc stdin="/dev/log2" stdout="/dev/log2" stderr="/dev/log"/>
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</config>
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<route>
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<service name="LOG" label="2"> <child name="test-libc_component"/> </service>
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<any-service> <parent/> <any-child/> </any-service>
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</route>
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</start>
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</config>
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}
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install_config $config
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#
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# Boot modules
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#
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set boot_modules {
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core init timer terminal_crosslink
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test-libc_counter-source test-libc_component
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ld.lib.so libc.lib.so libm.lib.so
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}
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build_boot_image $boot_modules
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append qemu_args "-nographic -m 128"
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#
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# Execute test case
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#
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run_genode_until forever
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run_genode_until "child \"test-libc_counter-sink\" exited with exit value 0.*\n" 30
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# vi: set ft=tcl :
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114
repos/libports/run/libc_vfs_component.run
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114
repos/libports/run/libc_vfs_component.run
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@ -0,0 +1,114 @@
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#
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# Build
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#
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set build_components {
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core init drivers/timer server/terminal_crosslink server/vfs
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test/libc_counter test/libc_component
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}
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build $build_components
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create_boot_directory
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#
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# Generate config
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#
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append config {
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<config verbose="yes">
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<parent-provides>
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<service name="ROM"/>
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<service name="RAM"/>
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<service name="PD"/>
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<service name="RM"/>
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<service name="CPU"/>
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<service name="LOG"/>
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</parent-provides>
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<default-route>
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<any-service> <parent/> <any-child/> </any-service>
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</default-route>
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<start name="timer">
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<resource name="RAM" quantum="1M"/>
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<provides> <service name="Timer"/> </provides>
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</start>
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<start name="terminal_crosslink">
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<resource name="RAM" quantum="1M"/>
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<provides> <service name="Terminal"/> </provides>
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</start>
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<start name="vfs">
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<resource name="RAM" quantum="12M"/>
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<provides> <service name="File_system"/> </provides>
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<config>
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<vfs>
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<dir name="dev"> <terminal/> </dir>
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<dir name="tmp"> <ram/> </dir>
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</vfs>
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<default-policy root="/" writeable="yes"/>
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</config>
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</start>
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<start name="test-libc_component">
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<resource name="RAM" quantum="8M"/>
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<provides> <service name="LOG"/> </provides>
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<config ld_verbose="yes">
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<vfs>
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<dir name="dev"> <log/> </dir>
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<fs/>
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</vfs>
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<libc stdin="/dev/log" stdout="/dev/log" stderr="/dev/log"/>
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</config>
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</start>
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<start name="counter-terminal">
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<binary name="test-libc_counter-source"/>
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<resource name="RAM" quantum="8M"/>
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<config>
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<vfs>
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<dir name="dev"> <terminal/> <log/> </dir>
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</vfs>
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<libc stdin="/dev/terminal" stdout="/dev/terminal" stderr="/dev/log"/>
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</config>
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</start>
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<start name="counter-log">
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<binary name="test-libc_counter-source"/>
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<resource name="RAM" quantum="8M"/>
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<config>
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<vfs>
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<dir name="dev"> <log/> <log name="log2" label="2"/> </dir>
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</vfs>
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<libc stdin="/dev/log2" stdout="/dev/log2" stderr="/dev/log"/>
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</config>
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<route>
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<service name="LOG" label="2"> <child name="test-libc_component"/> </service>
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<any-service> <parent/> <any-child/> </any-service>
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</route>
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</start>
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</config>
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}
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install_config $config
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#
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# Boot modules
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#
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set boot_modules {
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core init timer terminal_crosslink vfs
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test-libc_counter-source test-libc_component
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ld.lib.so libc.lib.so libm.lib.so
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}
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build_boot_image $boot_modules
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append qemu_args "-nographic -m 128"
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#
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# Execute test case
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#
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run_genode_until forever
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run_genode_until "child \"test-libc_counter-sink\" exited with exit value 0.*\n" 30
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# vi: set ft=tcl :
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@ -510,6 +510,7 @@ struct Libc::Kernel
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return;
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}
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_resume_main_once = false;
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_app_returned = false;
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_app_code = &app_code;
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@ -526,7 +527,7 @@ struct Libc::Kernel
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while (!_app_returned) {
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_env.ep().wait_and_dispatch_one_signal();
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if (_resume_main_once)
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if (_resume_main_once && !_setjmp(_kernel_context))
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_switch_to_user();
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}
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}
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@ -665,8 +666,6 @@ void Libc::schedule_suspend(void (*suspended) ())
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void Libc::execute_in_application_context(Libc::Application_code &app_code)
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{
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warning("executing code in application context, not implemented");
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/*
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* XXX We don't support a second entrypoint - pthreads should work as they
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* don't use this code.
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@ -687,8 +686,6 @@ void Libc::execute_in_application_context(Libc::Application_code &app_code)
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nested = true;
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kernel->run(app_code);
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nested = false;
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warning("leaving application context");
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}
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175
repos/libports/src/test/libc_component/main.cc
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175
repos/libports/src/test/libc_component/main.cc
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/*
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* \brief Libc-component using select test
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* \author Christian Helmuth
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* \date 2017-02-09
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*/
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/*
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* Copyright (C) 2017 Genode Labs GmbH
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*
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* This file is part of the Genode OS framework, which is distributed
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* under the terms of the GNU General Public License version 2.
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*/
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/* Genode includes */
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#include <base/log.h>
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#include <base/rpc_server.h>
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#include <os/static_root.h>
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#include <libc/component.h>
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#include <libc/select.h>
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#include <log_session/log_session.h>
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/* libc includes */
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#include <errno.h>
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#include <stdio.h>
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#include <stdlib.h>
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#include <string.h>
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#include <unistd.h>
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#include <sys/select.h>
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#include <sys/fcntl.h>
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namespace Log {
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using Genode::Static_root;
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using Genode::Log_session;
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struct Session_component;
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struct Main;
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}
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static void die(char const *token) __attribute__((noreturn));
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static void die(char const *token)
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{
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Genode::error("[", Genode::Cstring(token), "] ", Genode::Cstring(strerror(errno)));
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exit(1);
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}
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static void use_file_system()
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{
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int result = 0;
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int const fd = open("/tmp/blub", O_RDWR | O_NONBLOCK | O_CREAT | O_APPEND);
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if (fd == -1) die("open");
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printf("open returned fd %d\n", fd);
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static char buf[1024];
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result = read(fd, buf, sizeof(buf));
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if (result == -1) die("read");
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printf("read %d bytes\n", result);
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result = write(fd, "X", 1);
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if (result == -1) die("write");
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printf("wrote %d bytes\n", result);
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result = close(fd);
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if (result == -1) die("close");
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}
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struct Log::Session_component : Genode::Rpc_object<Log_session>
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{
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char _buf[Log_session::MAX_STRING_LEN];
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int _fd = -1;
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fd_set _readfds;
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fd_set _writefds;
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fd_set _exceptfds;
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void _select()
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{
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int nready = 0;
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do {
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fd_set readfds = _readfds;
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fd_set writefds = _writefds;
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fd_set exceptfds = _exceptfds;
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nready = _select_handler.select(_fd + 1, readfds, writefds, exceptfds);
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if (nready)
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_select_ready(nready, readfds, writefds, exceptfds);
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} while (nready);
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}
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Libc::Select_handler<Session_component> _select_handler {
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*this, &Session_component::_select_ready };
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void _select_ready(int nready, fd_set const &readfds, fd_set const &writefds, fd_set const &exceptfds)
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{
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Libc::with_libc([&] () {
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if (nready <= 0) {
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Genode::warning("select handler reported nready=", nready);
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return;
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}
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if (!FD_ISSET(_fd, &readfds)) {
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Genode::warning("select handler reported unexpected fd, nready=", nready);
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for (unsigned i = 0; i < FD_SETSIZE; ++i)
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if (FD_ISSET(i, &readfds)) Genode::log("fd ", i, " readable");
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for (unsigned i = 0; i < FD_SETSIZE; ++i)
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if (FD_ISSET(i, &writefds)) Genode::log("fd ", i, " writeable");
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for (unsigned i = 0; i < FD_SETSIZE; ++i)
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if (FD_ISSET(i, &exceptfds)) Genode::log("fd ", i, " exceptable?");
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return;
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}
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int const result = read(_fd, _buf, sizeof(_buf)-1);
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if (result <= 0) {
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Genode::warning("read returned ", result, " in select handler");
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return;
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}
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_buf[result] = 0;
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Genode::log("read from file \"", Genode::Cstring(_buf), "\"");
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});
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}
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Session_component()
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{
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Libc::with_libc([&] () {
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_fd = open("/dev/terminal", O_RDWR);
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if (_fd == -1) die("open");
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FD_ZERO(&_readfds);
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FD_ZERO(&_writefds);
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FD_ZERO(&_exceptfds);
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FD_SET(_fd, &_readfds);
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});
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}
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Genode::size_t write(String const &string_buf)
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{
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if (!(string_buf.valid_string())) { return 0; }
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strncpy(_buf, string_buf.string(), sizeof(_buf));
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size_t len = strlen(_buf);
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if (_buf[len-1] == '\n') _buf[len-1] = 0;
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Genode::log("RPC with \"", Genode::Cstring(_buf), "\"");
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_select();
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return len;
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}
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};
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struct Log::Main
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{
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Libc::Env &_env;
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Session_component _session { };
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Static_root<Log_session> _root { _env.ep().manage(_session) };
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Main(Libc::Env &env) : _env(env)
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{
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Libc::with_libc([] () { use_file_system(); });
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_env.parent().announce(_env.ep().manage(_root));
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}
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};
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void Libc::Component::construct(Libc::Env &env) { static Log::Main inst(env); }
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3
repos/libports/src/test/libc_component/target.mk
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3
repos/libports/src/test/libc_component/target.mk
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@ -0,0 +1,3 @@
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TARGET = test-libc_component
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SRC_CC = main.cc
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LIBS = libc
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