shithub: c9

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tag is two bytes

--- a/c9.c

+++ b/c9.c

@@ -104,7 +104,7 @@

 	}

 	if(c->lowfreetag < C9maxtags){

-		uint32_t d = c->lowfreetag / C9tagbits, m = c->lowfreetag % C9tagbits;

+		uint32_t d = c->lowfreetag / C9tagsbits, m = c->lowfreetag % C9tagsbits;

 		if((c->tags[d] & 1<<m) != 0){

 			c->tags[d] &= ~(1<<m);

 			*tag = c->lowfreetag++;

@@ -116,10 +116,10 @@

 		uint32_t x, j;

 		if((x = c->tags[i]) == 0)

 			continue;

-		for(j = 0; j < C9tagbits; j++){

+		for(j = 0; j < C9tagsbits; j++){

 			if((x & (1<<j)) != 0){

 				c->tags[i] &= ~(1<<j);

-				*tag = i*C9tagbits + j;

+				*tag = i*C9tagsbits + j;

 				c->lowfreetag = *tag + 1;

 				return 0;

 			}

@@ -134,7 +134,7 @@

 freetag(C9ctx *c, C9tag tag)

 {

 	if(tag != 0xffff){

-		uint32_t d = tag / C9tagbits, m = tag % C9tagbits;

+		uint32_t d = tag / C9tagsbits, m = tag % C9tagsbits;

 		if(tag >= C9maxtags){

 			c->error("freetag: invalid tag");

 			return -1;

--- a/c9.h

+++ b/c9.h

@@ -9,7 +9,7 @@

 typedef enum C9ttype C9ttype;

 typedef enum C9qt C9qt;

 typedef uint32_t C9fid;

-typedef uint32_t C9tag;

+typedef uint16_t C9tag;

 /* Stat field is not changed if it's set to this value when calling c9wstat. */

 #define C9nochange (~0)

@@ -256,7 +256,7 @@

 enum

 {

-	C9tagbits = sizeof(uint32_t) * 8,

+	C9tagsbits = sizeof(uint32_t) * 8,

 };

 struct C9ctx

@@ -292,8 +292,8 @@

 	/* private stuff */

 	uint32_t msize;

-	uint32_t tags[C9maxtags/C9tagbits];

 	uint32_t flush[C9maxflush];

+	uint32_t tags[C9maxtags/C9tagsbits];

 	union

 	{

 		C9tag lowfreetag;