Defferable server

composition_scripts/sched_test_double_hit.toml

@@ -0,0 +1,33 @@
+[system]
+description = "Simplest system with both capability manager and scheduler, from unit_schedcomp.sh"
+
+[[components]]
+name = "booter"
+img  = "no_interface.llbooter"
+implements = [{interface = "init"}, {interface = "addr"}]
+deps = [{srv = "kernel", interface = "init", variant = "kernel"}]
+constructor = "kernel"
+
+[[components]]
+name = "capmgr"
+img  = "capmgr.simple"
+deps = [{srv = "booter", interface = "init"}, {srv = "booter", interface = "addr"}]
+implements = [{interface = "capmgr"}, {interface = "init"}, {interface = "memmgr"}, {interface = "capmgr_create"}]
+constructor = "booter"
+
+[[components]]
+name = "sched"
+img  = "sched.deferrable_server"
+deps = [{srv = "capmgr", interface = "init"}, {srv = "capmgr", interface = "capmgr"}, {srv = "capmgr", interface = "memmgr"}]
+implements = [{interface = "sched"}, {interface = "init"}]
+constructor = "booter"
+
+[[components]]
+name = "schedtest"
+img  = "tests.threads"
+deps = [{srv = "sched", interface = "init"}, {srv = "sched", interface = "sched"}, {srv = "capmgr", interface = "capmgr_create"}]
+params = [{key = "1", value = "0,1,4000,1000,900,7000"}]
+constructor = "booter"
+
+# To create test threads
+# params = [{key = "1", value = "type,priority,period_us,budget_us,execution_us,block_us"}...

composition_scripts/sched_test_periodicity.toml

@@ -0,0 +1,33 @@
+[system]
+description = "Simplest system with both capability manager and scheduler, from unit_schedcomp.sh"
+
+[[components]]
+name = "booter"
+img  = "no_interface.llbooter"
+implements = [{interface = "init"}, {interface = "addr"}]
+deps = [{srv = "kernel", interface = "init", variant = "kernel"}]
+constructor = "kernel"
+
+[[components]]
+name = "capmgr"
+img  = "capmgr.simple"
+deps = [{srv = "booter", interface = "init"}, {srv = "booter", interface = "addr"}]
+implements = [{interface = "capmgr"}, {interface = "init"}, {interface = "memmgr"}, {interface = "capmgr_create"}]
+constructor = "booter"
+
+[[components]]
+name = "sched"
+img  = "sched.deferrable_server"
+deps = [{srv = "capmgr", interface = "init"}, {srv = "capmgr", interface = "capmgr"}, {srv = "capmgr", interface = "memmgr"}]
+implements = [{interface = "sched"}, {interface = "init"}]
+constructor = "booter"
+
+[[components]]
+name = "schedtest"
+img  = "tests.threads"
+deps = [{srv = "sched", interface = "init"}, {srv = "sched", interface = "sched"}, {srv = "capmgr", interface = "capmgr_create"}]
+params = [{key = "1", value = "0,1,4000,1000,0,0"}]
+constructor = "booter"
+
+# To create test threads
+# params = [{key = "1", value = "type,priority,period_us,budget_us,execution_us,block_us"}, ...

composition_scripts/sched_test_priority.toml

@@ -0,0 +1,33 @@
+[system]
+description = "Simplest system with both capability manager and scheduler, from unit_schedcomp.sh"
+
+[[components]]
+name = "booter"
+img  = "no_interface.llbooter"
+implements = [{interface = "init"}, {interface = "addr"}]
+deps = [{srv = "kernel", interface = "init", variant = "kernel"}]
+constructor = "kernel"
+
+[[components]]
+name = "capmgr"
+img  = "capmgr.simple"
+deps = [{srv = "booter", interface = "init"}, {srv = "booter", interface = "addr"}]
+implements = [{interface = "capmgr"}, {interface = "init"}, {interface = "memmgr"}, {interface = "capmgr_create"}]
+constructor = "booter"
+
+[[components]]
+name = "sched"
+img  = "sched.deferrable_server"
+deps = [{srv = "capmgr", interface = "init"}, {srv = "capmgr", interface = "capmgr"}, {srv = "capmgr", interface = "memmgr"}]
+implements = [{interface = "sched"}, {interface = "init"}]
+constructor = "booter"
+
+[[components]]
+name = "schedtest"
+img  = "tests.threads"
+deps = [{srv = "sched", interface = "init"}, {srv = "sched", interface = "sched"}, {srv = "capmgr", interface = "capmgr_create"}]
+params = [{key = "1", value = "0,1,4000,2000,0,0"}, {key = "2", value = "0,2,4000,1000,0,0"}]
+constructor = "booter"
+
+# To create test threads
+# params = [{key = "1", value = "type,priority,period_us,budget_us,execution_us,block_us"}...

doc/baremetal.md

@@ -73,14 +73,14 @@ Good news, we found some [Null-Modem RS232 Serial cables](https://www.amazon.com
 If you've a UNIX-based machine, you could use `minicom` to see the serial output from Composite running on baremetal on your host machine.
 
 To get minicom working with the RS232 Serial to USB cables, you'd need to change the serail port to: `/dev/ttyUSB0` ideally using `minicom -s`. (You should verify this device from the `dmesg` output to be sure you're using the right port).
-Next, you'd need to set up the baudrate to match what composite uses (38400bps).
+Next, you'd need to set up the baudrate to match what composite uses (115200bps).
 To see the logs correctly, you'd need to set the linefeed, carriage return, and linewrap to "Yes".
 
 The contents of my minicom config file `minirc.dfl`:
 ```
 # Machine-generated file - use "minicom -s" to change parameters.
 pu port             /dev/ttyUSB0
-pu baudrate         38400
+pu baudrate         115200
 pu histlines        5000
 pu addlinefeed      Yes
 pu linewrap         Yes

src/components/implementation/sched/deferrable_server/Makefile

@@ -0,0 +1,23 @@
+# Required variables used to drive the compilation process. It is OK
+# for many of these to be empty.
+#
+# The set of interfaces that this component exports for use by other
+# components. This is a list of the interface names.
+INTERFACE_EXPORTS = sched init syncipc
+# The interfaces this component is dependent on for compilation (this
+# is a list of directory names in interface/)
+INTERFACE_DEPENDENCIES = init capmgr memmgr
+# The library dependencies this component is reliant on for
+# compilation/linking (this is a list of directory names in lib/)
+LIBRARY_DEPENDENCIES = component slm ps util crt initargs ck
+# Note: Both the interface and library dependencies should be
+# *minimal*. That is to say that removing a dependency should cause
+# the build to fail. The build system does not validate this
+# minimality; that's on you!
+
+CFILES+=../shared/init.c
+CFILES+=../shared/thd_alloc.c
+
+C_OBJS+=$(CFILES:%.c=%.o)
+
+include Makefile.subsubdir