sqlite: Initial port

.gitignore

@@ -38,3 +38,4 @@ src/components/lib/ck/share
 doc/dev_manual/composite_dev_manual.pdf
 doc/dev_manual/resources/*.pdf
 system_binaries/cos_build-*
+.vscode

.gitmodules

@@ -1,6 +1,12 @@
 [submodule "src/components/lib/ps/ps"]
 	path = src/components/lib/ps/ps
-	url = https://github.com/gwsystems/ps.git
+	url = https://github.com/msdx321/ps.git
 [submodule "src/components/lib/ck/ck"]
 	path = src/components/lib/ck/ck
 	url = https://github.com/gwsystems/ck.git
+[submodule "src/components/lib/sqlite/sqlite"]
+	path = src/components/lib/sqlite/sqlite
+	url = https://github.com/msdx321/sqlite.git
+[submodule "src/components/lib/lwext4/lwext4"]
+	path = src/components/lib/lwext4/lwext4
+	url = https://github.com/msdx321/lwext4.git

composition_scripts/ext4_test.toml

@@ -0,0 +1,43 @@
+[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.root_fprr"
+deps = [{srv = "capmgr", interface = "init"}, {srv = "capmgr", interface = "capmgr"}, {srv = "capmgr", interface = "memmgr"}]
+implements = [{interface = "sched"}, {interface = "init"}]
+constructor = "booter"
+
+[[components]]
+name = "blockdev"
+img  = "blockdev.ramdisk"
+deps = [{srv = "sched", interface = "init"}, {srv = "capmgr", interface = "capmgr_create"}, {srv = "capmgr", interface = "memmgr"}]
+implements = [{interface = "blockdev"}]
+constructor = "booter"
+
+[[components]]
+name = "filesystem"
+img  = "filesystem.ext4"
+deps = [{srv = "sched", interface = "init"}, {srv = "capmgr", interface = "capmgr_create"}, {srv = "blockdev", interface = "blockdev"}, {srv = "capmgr", interface = "memmgr"}]
+implements = [{interface = "filesystem"}]
+constructor = "booter"
+
+[[components]]
+name = "ext4_tests"
+img  = "tests.ext4_tests"
+deps = [{srv = "sched", interface = "init"}, {srv = "capmgr", interface = "capmgr_create"}, {srv = "filesystem", interface = "filesystem"}, {srv = "capmgr", interface = "memmgr"}]
+constructor = "booter"

composition_scripts/ramdisk_test.toml

@@ -0,0 +1,36 @@
+[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.root_fprr"
+deps = [{srv = "capmgr", interface = "init"}, {srv = "capmgr", interface = "capmgr"}, {srv = "capmgr", interface = "memmgr"}]
+implements = [{interface = "sched"}, {interface = "init"}]
+constructor = "booter"
+
+[[components]]
+name = "blockdev"
+img  = "blockdev.ramdisk"
+deps = [{srv = "sched", interface = "init"}, {srv = "capmgr", interface = "capmgr_create"}, {srv = "capmgr", interface = "memmgr"}]
+implements = [{interface = "blockdev"}]
+constructor = "booter"
+
+[[components]]
+name = "ramdisk_tests"
+img  = "tests.ramdisk_tests"
+deps = [{srv = "sched", interface = "init"}, {srv = "capmgr", interface = "capmgr_create"}, {srv = "blockdev", interface = "blockdev"}, {srv = "capmgr", interface = "memmgr"}]
+constructor = "booter"

composition_scripts/sqlite_tests.toml

@@ -0,0 +1,29 @@
+[system]
+description = "Simple test of sqlite."
+
+[[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.root_fprr"
+deps = [{srv = "capmgr", interface = "init"}, {srv = "capmgr", interface = "capmgr"}, {srv = "capmgr", interface = "memmgr"}]
+implements = [{interface = "sched"}, {interface = "init"}]
+constructor = "booter"
+
+[[components]]
+name = "sqlite_tests"
+img  = "tests.sqlite_tests"
+deps = [{srv = "sched", interface = "init"}, {srv = "sched", interface = "sched"}, {srv = "capmgr", interface = "capmgr_create"}, {srv = "capmgr", interface = "memmgr"}, {srv = "capmgr", interface = "capmgr"}]
+constructor = "booter"

src/components/implementation/blockdev/Makefile

@@ -0,0 +1,18 @@
+# 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 = blockdev
+# The interfaces this component is dependent on for compilation (this
+# is a list of directory names in interface/)
+INTERFACE_DEPENDENCIES = memmgr
+# The library dependencies this component is reliant on for
+# compilation/linking (this is a list of directory names in lib/)
+LIBRARY_DEPENDENCIES = component
+# 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!
+
+include Makefile.subdir

src/components/implementation/blockdev/ramdisk/Makefile

@@ -0,0 +1,18 @@
+# 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 = blockdev
+# The interfaces this component is dependent on for compilation (this
+# is a list of directory names in interface/)
+INTERFACE_DEPENDENCIES = memmgr
+# The library dependencies this component is reliant on for
+# compilation/linking (this is a list of directory names in lib/)
+LIBRARY_DEPENDENCIES = component
+# 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!
+
+include Makefile.subsubdir

src/components/implementation/blockdev/ramdisk/doc.md

@@ -0,0 +1,9 @@
+## blockdev
+
+This is the skeleton interface used by the `mkcomponent.sh` script to aid in the creation of a new component.
+It provides no functionality, and should never be depended on!
+This documentation should be *replaced* in the documentation for a new component.
+
+### Description
+
+### Usage and Assumptions

src/components/implementation/blockdev/ramdisk/ramdisk.c

@@ -0,0 +1,45 @@
+#include <cos_component.h>
+#include <llprint.h>
+#include <memmgr.h>
+
+#define BLOCKDEV_RAMDISK_BSIZE 4096
+#define BLOCKDEV_RAMDISK_SIZE 16 * 1024 * 1024
+
+typedef struct block {
+	char c[BLOCKDEV_RAMDISK_BSIZE];
+} blk;
+
+blk *ram_backend;
+
+unsigned int
+blockdev_bread(void *buf, unsigned long offset, unsigned long length)
+{
+	memcpy(buf, &ram_backend[offset], length * BLOCKDEV_RAMDISK_BSIZE);
+	return 0;
+}
+
+unsigned int
+blockdev_bwrite(const void *buf, unsigned long offset, unsigned long length)
+{
+	memcpy(&ram_backend[offset], buf, length * BLOCKDEV_RAMDISK_BSIZE);
+	return 0;
+}
+
+void
+cos_init(void)
+{
+	ram_backend = (blk *)memmgr_heap_page_allocn(BLOCKDEV_RAMDISK_SIZE / 4096);
+	return;
+}
+
+void
+cos_parallel_init(coreid_t cid, int init_core, int ncores)
+{
+	return;
+}
+
+void
+parallel_main(coreid_t cid)
+{
+	return;
+}

src/components/implementation/filesystem/Makefile

@@ -0,0 +1,18 @@
+# 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 = filesystem
+# The interfaces this component is dependent on for compilation (this
+# is a list of directory names in interface/)
+INTERFACE_DEPENDENCIES = blockdev
+# The library dependencies this component is reliant on for
+# compilation/linking (this is a list of directory names in lib/)
+LIBRARY_DEPENDENCIES = component
+# 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!
+
+include Makefile.subdir

src/components/implementation/filesystem/ext4/Makefile

@@ -0,0 +1,18 @@
+# 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 = filesystem
+# The interfaces this component is dependent on for compilation (this
+# is a list of directory names in interface/)
+INTERFACE_DEPENDENCIES = blockdev memmgr
+# The library dependencies this component is reliant on for
+# compilation/linking (this is a list of directory names in lib/)
+LIBRARY_DEPENDENCIES = component lwext4 posix libc ps
+# 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!
+
+include Makefile.subsubdir

src/components/implementation/filesystem/ext4/doc.md

@@ -0,0 +1,9 @@
+## filesystem
+
+This is the skeleton interface used by the `mkcomponent.sh` script to aid in the creation of a new component.
+It provides no functionality, and should never be depended on!
+This documentation should be *replaced* in the documentation for a new component.
+
+### Description
+
+### Usage and Assumptions