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-rw-r--r--src/include/gc/server.h1
-rw-r--r--src/include/gc/syscall.h1
-rw-r--r--src/include/gm/method.h3
-rw-r--r--src/kernel/ipc/request.c2
-rw-r--r--src/kernel/ipc/request.h2
-rw-r--r--src/kernel/task/task.c12
-rw-r--r--src/library/Makefile4
-rw-r--r--src/library/gc/server.c (renamed from src/library/gc/object.c)9
-rw-r--r--src/library/gc/shm.c8
-rw-r--r--src/library/std/mutex.c (renamed from src/library/mutex.c)0
-rw-r--r--src/modules/manager/Makefile33
-rw-r--r--src/modules/manager/main.c23
-rw-r--r--src/modules/test/Makefile3
-rw-r--r--src/modules/test/main.c15
14 files changed, 100 insertions, 16 deletions
diff --git a/src/include/gc/server.h b/src/include/gc/server.h
index b98b4fb..36597c7 100644
--- a/src/include/gc/server.h
+++ b/src/include/gc/server.h
@@ -74,6 +74,7 @@ void srv_handle(Server* o, int act);
Server *srv_create();
void srv_delete(Server *o);
+Server *srv_get(int descriptor);
void srv_addHandler(Server* o, uint32_t method, method_handler h);
#endif
diff --git a/src/include/gc/syscall.h b/src/include/gc/syscall.h
index c93a523..9ac6748 100644
--- a/src/include/gc/syscall.h
+++ b/src/include/gc/syscall.h
@@ -15,6 +15,7 @@ typedef unsigned size_t;
struct user_request {
uint32_t func, params[3], shmsize[3];
int isBlocking; // 1 : blocking request, 0 : nonblocking request (message)
+ int pid; //pid of caller process
};
struct user_sendrequest {
diff --git a/src/include/gm/method.h b/src/include/gm/method.h
index ac6ab0e..6206f07 100644
--- a/src/include/gm/method.h
+++ b/src/include/gm/method.h
@@ -19,4 +19,7 @@
/* Checks if object handles that method. In case BIVV, only one method is checked for.
* In case BMIV, the [b] methods in shared memory [a] are checked, first one not found returns false. */
+#define M_NOTHING_VVVV (2)
+/* This method does nothing, it just checks message transmission to an object. */
+
#endif
diff --git a/src/kernel/ipc/request.c b/src/kernel/ipc/request.c
index 4e8b407..9ca724e 100644
--- a/src/kernel/ipc/request.c
+++ b/src/kernel/ipc/request.c
@@ -26,6 +26,7 @@ int request_get(int id, uint32_t ptr, int wait) {
else p->shmsize[i] = 0;
}
p->isBlocking = (obj->request->requester != 0);
+ p->pid = obj->request->pid;
//if request is nonblocking and no shm is to be mapped, delete request and unlock objects busymutex, else set it to acknowledged
if (p->isBlocking) return 0;
for (i = 0; i < 3; i++) {
@@ -149,6 +150,7 @@ static struct request *mkrequest(int id, struct thread *requester,
rq->func = func;
for (i = 0; i < 3; i++) { rq->params[i] = 0; rq->obj_close[i] = 0; rq->shm_sndr[i] = 0; rq->shm_rcv[i] = 0; }
rq->acknowledged = RS_PENDING;
+ rq->pid = current_thread->process->pid;
// integers: use as is
// objects: open a new descriptor in receiver process (if same process, keep number), put that number as an int
// if receiver already had descriptor to this object, use it and set obj_close to 0, else set obj_close to new number
diff --git a/src/kernel/ipc/request.h b/src/kernel/ipc/request.h
index b08264f..18eaf84 100644
--- a/src/kernel/ipc/request.h
+++ b/src/kernel/ipc/request.h
@@ -25,11 +25,13 @@ struct request {
uint32_t n;
} answer;
int errcode; //returned when function has finished
+ int pid; //pid of caller
};
struct user_request {
uint32_t func, params[3], shmsize[3];
int isBlocking; // 1 : blocking request, 0 : nonblocking request (message)
+ int pid; //pid of caller process
};
struct user_sendrequest {
diff --git a/src/kernel/task/task.c b/src/kernel/task/task.c
index 9221813..f10ec6f 100644
--- a/src/kernel/task/task.c
+++ b/src/kernel/task/task.c
@@ -9,6 +9,8 @@
#define KSTACKSIZE 0x8000
+static struct object *manager_object = 0;
+
//Static routines for handling threads exiting and all cleanup
static void thread_exit_stackJmp(uint32_t reason);
static void thread_exit2(uint32_t reason);
@@ -109,6 +111,7 @@ uint32_t tasking_handleException(struct registers *regs) {
"Page Fault","Unknown Interrupt","Coprocessor Fault","Alignment Check","Machine Check"};
monitor_write(exception_messages[regs->int_no]);
monitor_write(" at "); monitor_writeHex(regs->eip);
+ PANIC("kk");
if (regs->int_no == 14) {
monitor_write("\n>>> Process exiting.\n");
thread_exit_stackJmp(EX_PR_EXCEPTION);
@@ -283,7 +286,10 @@ struct process *process_new(struct process* parent, uint32_t uid, uint32_t privi
p->next_objdesc = 0;
p->objects = 0;
- obj_createP(p); //create process' root object and add descriptor 0 to it
+ struct object* o = obj_new(p);
+ if (manager_object == 0) manager_object = o;
+ objdesc_add(p, o); //create process' root object and add descriptor 0 to it
+ objdesc_add(p, manager_object);
processes = p;
return p;
@@ -307,8 +313,8 @@ static void process_delete(struct process *pr) {
struct thread *it;
while (threads != 0 && threads->process == pr) thread_delete(threads);
it = threads;
- while (it != 0) {
- while (it->next->process == pr) thread_delete(it->next);
+ while (it != 0 && it->next != 0) {
+ while (it->next != 0 && it->next->process == pr) thread_delete(it->next);
it = it->next;
}
obj_closeall(pr);
diff --git a/src/library/Makefile b/src/library/Makefile
index b0dac11..f7161b6 100644
--- a/src/library/Makefile
+++ b/src/library/Makefile
@@ -7,9 +7,9 @@ LD = ld
LDFLAGS = -r
Library = grapes.o
-Objects = gc/syscall.o gc/object.o \
+Objects = gc/syscall.o gc/server.o \
gc/mem.o gc/shm.o \
- mutex.o \
+ std/mutex.o \
start.o
all: $(Library)
diff --git a/src/library/gc/object.c b/src/library/gc/server.c
index 87dafd8..9fd1616 100644
--- a/src/library/gc/object.c
+++ b/src/library/gc/server.c
@@ -109,6 +109,15 @@ Server *srv_create() {
return s;
}
+Server *srv_get(int descriptor) {
+ Server *s = servers;
+ while (s) {
+ if (s->id == descriptor) return s;
+ s = s->next;
+ }
+ return 0;
+}
+
void srv_delete(Server* s) {
//remove s from servers
if (servers == s) {
diff --git a/src/library/gc/shm.c b/src/library/gc/shm.c
index 9e19533..8077352 100644
--- a/src/library/gc/shm.c
+++ b/src/library/gc/shm.c
@@ -26,10 +26,10 @@ void* shm_alloc(size_t size) {
if (blocks == 0) shm_init();
if (size & 0xFFF) size = (size & 0xFFFFF000) + 0x1000;
//go through all blocks, get the one with the closest size
- struct shm_block *block = blocks;
- while (block) {
- if (block->size >= size) break;
- block = block->next;
+ struct shm_block *i = blocks, *block = 0;
+ while (i) {
+ if (i->size >= size && i->is_hole == 1 && i->size < block->size) block = i;
+ i = i->next;
}
if (block == 0) {
mutex_unlock(&tMutex);
diff --git a/src/library/mutex.c b/src/library/std/mutex.c
index ac0ee8f..ac0ee8f 100644
--- a/src/library/mutex.c
+++ b/src/library/std/mutex.c
diff --git a/src/modules/manager/Makefile b/src/modules/manager/Makefile
new file mode 100644
index 0000000..87a9590
--- /dev/null
+++ b/src/modules/manager/Makefile
@@ -0,0 +1,33 @@
+.PHONY: clean, mrproper
+
+CC = gcc
+CFLAGS = -nostdlib -nostartfiles -nodefaultlibs -fno-builtin -fno-stack-protector -Wall -Wextra -I ../../include
+
+LD = ld
+LDFLAGS = -T ../../library/link.ld -L ../../library -Map manager.map
+
+Objects = main.o
+Outfile = manager.elf
+
+all: $(Outfile)
+ echo "* Done with $(Outfile)"
+
+rebuild: mrproper all
+
+$(Outfile): $(Objects)
+ echo "* Linking $@..."
+ $(LD) $(LDFLAGS) -o $@ $^
+
+%.o: %.c
+ $(CC) $(CFLAGS) -c $< -o $@
+
+clean:
+ echo "* Removing objects..."
+ rm *.o || exit 0
+ rm *.map || exit 0
+ rm $(Objects) || exit 0
+
+mrproper: clean
+ rm *.elf || exit 0
+ rm $(Outfile) || exit 0
+
diff --git a/src/modules/manager/main.c b/src/modules/manager/main.c
new file mode 100644
index 0000000..9e23097
--- /dev/null
+++ b/src/modules/manager/main.c
@@ -0,0 +1,23 @@
+#include <gc/syscall.h>
+#include <gc/mem.h>
+#include <gc/server.h>
+#include <gm/method.h>
+
+struct method_ret handle_nothing(struct method_data *d) {
+ if (d->blocking) printk("[manager] Received a {nothing} request.\n");
+ else printk("[manager] Received a {nothing} message.\n");
+ return mr_void();
+}
+
+int main() {
+ printk("[manager] Manager module configuring...\n");
+ Server *mgr = srv_get(0);
+
+ srv_addHandler(mgr, M_NOTHING_VVVV, handle_nothing);
+
+ printk("[manager] Manager module configured : starting request handling.\n");
+ srv_handle(mgr, HA_LOOP);
+
+ printk("[manager] Manager EPIC FAIL.\n");
+ return 0;
+}
diff --git a/src/modules/test/Makefile b/src/modules/test/Makefile
index e571da9..6dd9f80 100644
--- a/src/modules/test/Makefile
+++ b/src/modules/test/Makefile
@@ -4,7 +4,7 @@ CC = gcc
CFLAGS = -nostdlib -nostartfiles -nodefaultlibs -fno-builtin -fno-stack-protector -Wall -Wextra -I ../../include
LD = ld
-LDFLAGS = -T ../../library/link.ld -L ../../library -Map main.map
+LDFLAGS = -T ../../library/link.ld -L ../../library -Map test.map
Objects = main.o
Outfile = test.elf
@@ -24,6 +24,7 @@ $(Outfile): $(Objects)
clean:
echo "* Removing objects..."
rm *.o || exit 0
+ rm *.map || exit 0
rm $(Objects) || exit 0
mrproper: clean
diff --git a/src/modules/test/main.c b/src/modules/test/main.c
index 49dc50e..148490b 100644
--- a/src/modules/test/main.c
+++ b/src/modules/test/main.c
@@ -1,6 +1,7 @@
#include <gc/syscall.h>
#include <gc/mem.h>
#include <gc/server.h>
+#include <gm/method.h>
#define FACTOR 4
@@ -15,7 +16,7 @@ struct method_ret nulhandle(struct method_data *d) {
void thread2(void* d) {
printk("[test:2] Creating new object...\n");
Server *s = srv_create();
- srv_addHandler(s, 0x00000010, nulhandle);
+ srv_addHandler(s, M_NOTHING_VVVV, nulhandle);
obj = s->id;
while (1) {
printk("[test:2] Waiting for a request...\n");
@@ -32,10 +33,12 @@ int main() {
while (obj == -1);
printk("[test:1] Object was created. Sending request...\n");
struct user_sendrequest sr;
- sr.func = 0x00000010;
+ sr.func = M_NOTHING_VVVV;
request(obj, &sr);
- printk("[test:1] Got answer. Sending message...\n");
- send_msg(obj, &sr);
+ printk("[test:1] Got answer. Now sending request to manager...\n");
+ request(1, &sr);
+ printk("[test:1] And now a message to manager...\n");
+ send_msg(1, &sr);
printk("[test:1] testing malloc and free...");
int* v = malloc(10 * sizeof(int));
@@ -52,7 +55,7 @@ int main() {
free(v); free(vv);
printk("nothing bad happened :)\n");
- printk("[test:1] HAHA !!! Death in 10 seconds!\n");
- thread_sleep(10000);
+ printk("[test:1] HAHA !!! Death of [test] in 1 seconds!\n");
+ thread_sleep(1000);
return 0;
}
generated by cgit v1.2.3 (git 2.25.1) at 2024-12-25 17:09:11 +0000