use lttng_write for get size too
authorcompudj <compudj@04897980-b3bd-0310-b5e0-8ef037075253>
Mon, 14 Nov 2005 20:20:36 +0000 (20:20 +0000)
committercompudj <compudj@04897980-b3bd-0310-b5e0-8ef037075253>
Mon, 14 Nov 2005 20:20:36 +0000 (20:20 +0000)
git-svn-id: http://ltt.polymtl.ca/svn@1331 04897980-b3bd-0310-b5e0-8ef037075253

genevent-new/gentest.c

index efa9f9b738fc98b07a58b18382c937db0bfa8b05..67556797628c5f91476c439420bbd2016e480e27 100644 (file)
@@ -44,7 +44,7 @@ struct lttng_mystruct2 {
        //struct lttng_mystruct teststr1;
 };
 
-
+#if 0
 static inline size_t lttng_get_size_mystruct2(
                struct lttng_mystruct2 * obj)
 {
@@ -60,6 +60,7 @@ static inline size_t lttng_get_size_mystruct2(
 
        return sizeof(struct lttng_mystruct2);
 }
+#endif //0
 
 static inline size_t lttng_get_alignment_mystruct2(
                struct lttng_mystruct2 *obj)
@@ -76,7 +77,8 @@ static inline size_t lttng_get_alignment_mystruct2(
 }
 
 static inline void lttng_write_mystruct2(
-               void **to_base,
+               void *buffer,
+               size_t *to_base,
                size_t *to,
                void **from,
                size_t *len,
@@ -85,7 +87,8 @@ static inline void lttng_write_mystruct2(
        size_t align, size;
 
        align = lttng_get_alignment_mystruct2(obj);
-       size = lttng_get_size_mystruct2(obj);
+       //size = lttng_get_size_mystruct2(obj);
+       size = sizeof(struct lttng_mystruct2);
 
        if(*len == 0) {
                *to += ltt_align(*to, align);   /* align output */
@@ -101,6 +104,7 @@ static inline void lttng_write_mystruct2(
 #define LTTNG_ARRAY_SIZE_mystruct_myarray 10
 typedef uint64_t lttng_array_mystruct_myarray[LTTNG_ARRAY_SIZE_mystruct_myarray];
 
+#if 0
 static inline size_t lttng_get_size_array_mystruct_myarray(
                lttng_array_mystruct_myarray obj)
 {
@@ -116,6 +120,7 @@ static inline size_t lttng_get_size_array_mystruct_myarray(
 
        return sizeof(lttng_array_mystruct_myarray);
 }
+#endif //0
 
 static inline size_t lttng_get_alignment_array_mystruct_myarray(
                lttng_array_mystruct_myarray obj)
@@ -130,7 +135,8 @@ static inline size_t lttng_get_alignment_array_mystruct_myarray(
 
 
 static inline void lttng_write_array_mystruct_myarray(
-               void **to_base,
+               void *buffer,
+               size_t *to_base,
                size_t *to,
                void **from,
                size_t *len,
@@ -139,7 +145,8 @@ static inline void lttng_write_array_mystruct_myarray(
        size_t align, size;
        
        align = lttng_get_alignment_array_mystruct_myarray(obj);
-       size = lttng_get_size_array_mystruct_myarray(obj);
+       //size = lttng_get_size_array_mystruct_myarray(obj);
+       size = sizeof(lttng_array_mystruct_myarray);
 
        if(*len == 0) {
                *to += ltt_align(*to, align);   /* align output */
@@ -148,6 +155,13 @@ static inline void lttng_write_array_mystruct_myarray(
        }
        
        *len += size;
+#if 0
+       /* For varlen child : let the child align itself. */
+       for(unsigned int i=0; i<LTTNG_ARRAY_SIZE_mystruct_myarray; i++) {
+               lttng_write_child(buffer, to_base, to, from, len, obj[i]);
+       }
+#endif //0
+
 }
 
 
@@ -157,7 +171,7 @@ struct lttng_sequence_mystruct_mysequence {
        double *array;
 };
 
-
+#if 0
 static inline size_t lttng_get_size_sequence_mystruct_mysequence(
                                                                                                                                 lttng_sequence_mystruct_mysequence *obj)
 {
@@ -175,6 +189,7 @@ static inline size_t lttng_get_size_sequence_mystruct_mysequence(
 
        return size;
 }
+#endif //0
 
 static inline size_t lttng_get_alignment_sequence_mystruct_mysequence(
                                                                                                                                 lttng_sequence_mystruct_mysequence *obj)
@@ -192,22 +207,23 @@ static inline size_t lttng_get_alignment_sequence_mystruct_mysequence(
 
 
 static inline void lttng_write_sequence_mystruct_mysequence(
-               void **to_base,
+               void *buffer,
+               size_t *to_base,
                size_t *to,
                void **from,
                size_t *len,
                lttng_sequence_mystruct_mysequence *obj)
 {
        size_t align;
-       void *varfrom;
-       size_t varlen=0;
+       size_t size;
        
        /* Flush pending memcpy */
        if(*len != 0) {
-               memcpy(*to_base+*to, *from, *len);
-               *to += *len;
-               *len = 0;
+               if(buffer != NULL)
+                       memcpy(buffer+*to_base+*to, *from, *len);
        }
+       *to += *len;
+       *len = 0;
 
        align = lttng_get_alignment_sequence_mystruct_mysequence(obj);
        //no need size = lttng_get_size_sequence_mystruct_mysequence(obj);
@@ -216,19 +232,25 @@ static inline void lttng_write_sequence_mystruct_mysequence(
        *to += ltt_align(*to, align);   /* *len = 0 in this function */
        
        /* Copy members */
-       *to += ltt_align(*to, sizeof(unsigned int));
-       varfrom = &obj->len;
-       varlen += sizeof(unsigned int);
-       memcpy(*to_base+*to, varfrom, varlen);
-       *to += varlen;
-       varlen = 0;
-
-       *to += ltt_align(*to, sizeof(double));
-       varfrom = obj->array;
-       varlen += obj->len * sizeof(double);
-       memcpy(*to_base+*to, varfrom, varlen);
-       *to += varlen;
-       varlen = 0;
+       size = sizeof(unsigned int);
+       *to += ltt_align(*to, size);
+       if(buffer != NULL)
+               memcpy(buffer+*to_base+*to, &obj->len, size);
+       *to += size;
+
+       size =  sizeof(double);
+       *to += ltt_align(*to, size);
+       size = obj->len * sizeof(double);
+       if(buffer != NULL)
+               memcpy(buffer+*to_base+*to, obj->array, size);
+       *to += size;
+#if 0
+       /* If varlen child : let child align itself */
+       for(unsigned int i=0; i<obj->len; i++) {
+               lttng_write_child(buffer, to_base, to, from, len, obj->array[i]);
+       }
+#endif //0
+       
 
        /* Realign the *to_base on arch size, set *to to 0 */
        *to = ltt_align(*to, sizeof(void *));
@@ -246,7 +268,7 @@ union lttng_mystruct_myunion {
        unsigned long myulong;
 };
 
-
+#if 0
 static inline size_t lttng_get_size_mystruct_myunion(
                                                                                                                                 union lttng_mystruct_myunion *obj)
 {
@@ -262,7 +284,7 @@ static inline size_t lttng_get_size_mystruct_myunion(
 
        return sizeof(union lttng_mystruct_myunion);
 }
-
+#endif //0
 
 static inline size_t lttng_get_alignment_mystruct_myunion(
                                                                                                                                 union lttng_mystruct_myunion *obj)
@@ -280,7 +302,8 @@ static inline size_t lttng_get_alignment_mystruct_myunion(
 
 
 static inline void lttng_write_mystruct_myunion(
-               void **to_base,
+               void *buffer,
+               size_t *to_base,
                size_t *to,
                void **from,
                size_t *len,
@@ -289,7 +312,8 @@ static inline void lttng_write_mystruct_myunion(
        size_t align, size;
        
        align = lttng_get_alignment_mystruct_myunion(obj);
-       size = lttng_get_size_mystruct_myunion(obj);
+       //size = lttng_get_size_mystruct_myunion(obj);
+       size = sizeof(union lttng_mystruct_myunion);
 
        if(*len == 0) {
                *to += ltt_align(*to, align);   /* align output */
@@ -310,6 +334,7 @@ struct lttng_mystruct {
        union lttng_mystruct_myunion myunion;
 };
 
+#if 0
 static inline size_t lttng_get_size_mystruct(
                struct lttng_mystruct *obj)
 {
@@ -339,7 +364,7 @@ static inline size_t lttng_get_size_mystruct(
 
        return size;
 }
-
+#endif //0
 
 static inline size_t lttng_get_alignment_mystruct(
                struct lttng_mystruct *obj)
@@ -368,7 +393,8 @@ static inline size_t lttng_get_alignment_mystruct(
 }
 
 static inline void lttng_write_mystruct(
-               void **to_base,
+               void *buffer,
+               size_t *to_base,
                size_t *to,
                void **from,
                size_t *len,
@@ -396,18 +422,17 @@ static inline void lttng_write_mystruct(
        size += ltt_align(*to+*len, size) + size;
        *len += size;
 
-       lttng_write_mystruct2(to_base, to, from, len, &obj->teststr);
+       lttng_write_mystruct2(buffer, to_base, to, from, len, &obj->teststr);
 
-       lttng_write_array_mystruct_myarray(to_base, to, from, len, obj->myarray);
+       lttng_write_array_mystruct_myarray(buffer, to_base, to, from, len, obj->myarray);
 
        /* Variable length field */
-       lttng_write_sequence_mystruct_mysequence(to_base, to, from, len, &obj->mysequence);
-       //*to = 0;      /* Force the compiler to know it's 0 */
+       lttng_write_sequence_mystruct_mysequence(buffer, to_base, to, from, len, &obj->mysequence);
        /* After this previous write, we are sure that *to is 0, and *to_base is
         * aligned on the architecture size : to rest of alignment will be calculated
         * statically. */
 
-       lttng_write_mystruct_myunion(to_base, to, from, len, &obj->myunion);
+       lttng_write_mystruct_myunion(buffer, to_base, to, from, len, &obj->myunion);
 
        /* Don't forget to flush last write..... */
 }
@@ -424,25 +449,35 @@ void test()
        test.mysequence.len = 20;
        test.mysequence.array = malloc(20);
 
-       size_t size = lttng_get_size_mystruct(&test);
-       size_t align = lttng_get_alignment_mystruct(&test);
-
-       void *buf = malloc(align + size);
-       void *to_base = buf;    /* the buffer is allocated on arch_size alignment */
+       //size_t size = lttng_get_size_mystruct(&test);
+       //size_t align = lttng_get_alignment_mystruct(&test);
+       //
+       size_t to_base = 0;     /* the buffer is allocated on arch_size alignment */
        size_t to = 0;
        void *from = &test;
        size_t len = 0;
 
-       lttng_write_mystruct(&to_base, &to, &from, &len, &test);
+       /* Get size */
+       lttng_write_mystruct(NULL, &to_base, &to, &from, &len, &test);
+       /* Size = to_base + to + len */
+       
+       void *buffer = malloc(to_base + to + len);
+       to_base = 0;    /* the buffer is allocated on arch_size alignment */
+       to = 0;
+       from = &test;
+       len = 0;
+
+       lttng_write_mystruct(buffer, &to_base, &to, &from, &len, &test);
        /* Final flush */
        /* Flush pending memcpy */
        if(len != 0) {
-               memcpy(to_base+to, from, len);
+               // Assert buffer != NULL */
+               memcpy(buffer+to_base+to, from, len);
                to += len;
                from += len;
                len = 0;
        }
        
        free(test.mysequence.array);
-       free(buf);
+       free(buffer);
 }
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