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-rw-r--r--istream.c234
1 files changed, 119 insertions, 115 deletions
diff --git a/istream.c b/istream.c
index 8967280..efbcb54 100644
--- a/istream.c
+++ b/istream.c
@@ -35,12 +35,14 @@ static int ssl_read(struct ssl_handle *handle, char *buf, int len);
static int ens_read(struct ens_handle *handle, char *buf, int len);
static void ens_close(struct ens_handle *handle);
+static void memchop(char *p, int *len);
+
static void
do_update(BaseStream base)
{
int len;
base->stream.cur = base->stream.next = 0;
- len = base->read(base->handle, base->stream.buf, base->stream.size);
+ len = (*base->read) (base->handle, base->stream.buf, base->stream.size);
if (len <= 0)
base->iseos = TRUE;
else
@@ -66,12 +68,12 @@ init_buffer(BaseStream base, char *buf, int bufsize)
StreamBuffer sb = &base->stream;
sb->size = bufsize;
sb->cur = 0;
+ sb->buf = NewWithoutGC_N(uchar, bufsize);
if (buf) {
- sb->buf = (uchar *) buf;
+ memcpy(sb->buf, buf, bufsize);
sb->next = bufsize;
}
else {
- sb->buf = NewAtom_N(uchar, bufsize);
sb->next = 0;
}
base->iseos = FALSE;
@@ -95,10 +97,10 @@ newInputStream(int des)
InputStream stream;
if (des < 0)
return NULL;
- stream = New(union input_stream);
+ stream = NewWithoutGC(union input_stream);
init_base_stream(&stream->base, STREAM_BUF_SIZE);
stream->base.type = IST_BASIC;
- stream->base.handle = New(int);
+ stream->base.handle = NewWithoutGC(int);
*(int *)stream->base.handle = des;
stream->base.read = (int (*)())basic_read;
stream->base.close = (void (*)())basic_close;
@@ -111,10 +113,10 @@ newFileStream(FILE * f, void (*closep) ())
InputStream stream;
if (f == NULL)
return NULL;
- stream = New(union input_stream);
+ stream = NewWithoutGC(union input_stream);
init_base_stream(&stream->base, STREAM_BUF_SIZE);
stream->file.type = IST_FILE;
- stream->file.handle = New(struct file_handle);
+ stream->file.handle = NewWithoutGC(struct file_handle);
stream->file.handle->f = f;
if (closep)
stream->file.handle->close = closep;
@@ -131,10 +133,10 @@ newStrStream(Str s)
InputStream stream;
if (s == NULL)
return NULL;
- stream = New(union input_stream);
+ stream = NewWithoutGC(union input_stream);
init_str_stream(&stream->base, s);
stream->str.type = IST_STR;
- stream->str.handle = s;
+ stream->str.handle = NULL;
stream->str.read = (int (*)())str_read;
stream->str.close = NULL;
return stream;
@@ -147,10 +149,10 @@ newSSLStream(SSL * ssl, int sock)
InputStream stream;
if (sock < 0)
return NULL;
- stream = New(union input_stream);
+ stream = NewWithoutGC(union input_stream);
init_base_stream(&stream->base, SSL_BUF_SIZE);
stream->ssl.type = IST_SSL;
- stream->ssl.handle = New(struct ssl_handle);
+ stream->ssl.handle = NewWithoutGC(struct ssl_handle);
stream->ssl.handle->ssl = ssl;
stream->ssl.handle->sock = sock;
stream->ssl.read = (int (*)())ssl_read;
@@ -166,14 +168,14 @@ newEncodedStream(InputStream is, char encoding)
if (is == NULL || (encoding != ENC_QUOTE && encoding != ENC_BASE64 &&
encoding != ENC_UUENCODE))
return is;
- stream = New(union input_stream);
+ stream = NewWithoutGC(union input_stream);
init_base_stream(&stream->base, STREAM_BUF_SIZE);
stream->ens.type = IST_ENCODED;
- stream->ens.handle = New(struct ens_handle);
+ stream->ens.handle = NewWithoutGC(struct ens_handle);
stream->ens.handle->is = is;
stream->ens.handle->pos = 0;
stream->ens.handle->encoding = encoding;
- stream->ens.handle->s = NULL;
+ growbuf_init_without_GC(&stream->ens.handle->gb);
stream->ens.read = (int (*)())ens_read;
stream->ens.close = (void (*)())ens_close;
return stream;
@@ -187,8 +189,10 @@ ISclose(InputStream stream)
stream->base.type & IST_UNCLOSE)
return -1;
prevtrap = mySignal(SIGINT, SIG_IGN);
- stream->base.close(stream->base.handle);
+ stream->base.close (stream->base.handle);
mySignal(SIGINT, prevtrap);
+ xfree(stream->base.stream.buf);
+ xfree(stream);
return 0;
}
@@ -218,122 +222,97 @@ ISundogetc(InputStream stream)
return -1;
}
-#define MARGIN_STR_SIZE 10
Str
-StrISgets(InputStream stream)
+StrISgets2(InputStream stream, char crnl)
{
- BaseStream base;
- StreamBuffer sb;
- Str s = NULL;
- uchar *p;
- int len;
+ struct growbuf gb;
if (stream == NULL)
- return '\0';
- base = &stream->base;
- sb = &base->stream;
-
- while (!base->iseos) {
- if (MUST_BE_UPDATED(base)) {
- do_update(base);
- }
- else {
- if ((p = memchr(&sb->buf[sb->cur], '\n', sb->next - sb->cur))) {
- len = p - &sb->buf[sb->cur] + 1;
- if (s == NULL)
- s = Strnew_size(len);
- Strcat_charp_n(s, (char *)&sb->buf[sb->cur], len);
- sb->cur += len;
- return s;
- }
- else {
- if (s == NULL)
- s = Strnew_size(sb->next - sb->cur + MARGIN_STR_SIZE);
- Strcat_charp_n(s, (char *)&sb->buf[sb->cur],
- sb->next - sb->cur);
- sb->cur = sb->next;
- }
- }
- }
-
- if (s == NULL)
- return Strnew();
- return s;
+ return NULL;
+ growbuf_init(&gb);
+ ISgets_to_growbuf(stream, &gb, crnl);
+ return growbuf_to_Str(&gb);
}
-Str
-StrmyISgets(InputStream stream)
+void
+ISgets_to_growbuf(InputStream stream, struct growbuf *gb, char crnl)
{
- BaseStream base;
- StreamBuffer sb;
- Str s = NULL;
- int i, len;
+ BaseStream base = &stream->base;
+ StreamBuffer sb = &base->stream;
+ int i;
- if (stream == NULL)
- return '\0';
- base = &stream->base;
- sb = &base->stream;
+ gb->length = 0;
while (!base->iseos) {
if (MUST_BE_UPDATED(base)) {
do_update(base);
+ continue;
}
- else {
- if (s && Strlastchar(s) == '\r') {
- if (sb->buf[sb->cur] == '\n')
- Strcat_char(s, (char)sb->buf[sb->cur++]);
- return s;
+ if (crnl && gb->length > 0 && gb->ptr[gb->length - 1] == '\r') {
+ if (sb->buf[sb->cur] == '\n') {
+ GROWBUF_ADD_CHAR(gb, '\n');
+ ++sb->cur;
}
- for (i = sb->cur;
- i < sb->next && sb->buf[i] != '\n' && sb->buf[i] != '\r';
- i++) ;
- if (i < sb->next) {
- len = i - sb->cur + 1;
- if (s == NULL)
- s = Strnew_size(len + MARGIN_STR_SIZE);
- Strcat_charp_n(s, (char *)&sb->buf[sb->cur], len);
- sb->cur = i + 1;
- if (sb->buf[i] == '\n')
- return s;
- }
- else {
- if (s == NULL)
- s = Strnew_size(sb->next - sb->cur + MARGIN_STR_SIZE);
- Strcat_charp_n(s, (char *)&sb->buf[sb->cur],
- sb->next - sb->cur);
- sb->cur = sb->next;
+ break;
+ }
+ for (i = sb->cur; i < sb->next; ++i) {
+ if (sb->buf[i] == '\n' || (crnl && sb->buf[i] == '\r')) {
+ ++i;
+ break;
}
}
+ growbuf_append(gb, &sb->buf[sb->cur], i - sb->cur);
+ sb->cur = i;
+ if (gb->length > 0 && gb->ptr[gb->length - 1] == '\n')
+ break;
}
- if (s == NULL)
- return Strnew();
- return s;
+ growbuf_reserve(gb, gb->length + 1);
+ gb->ptr[gb->length] = '\0';
+ return;
}
+#ifdef unused
int
ISread(InputStream stream, Str buf, int count)
{
- int rest, len;
+ int len;
+
+ if (count + 1 > buf->area_size) {
+ char *newptr = GC_MALLOC_ATOMIC(count + 1);
+ memcpy(newptr, buf->ptr, buf->length);
+ newptr[buf->length] = '\0';
+ buf->ptr = newptr;
+ buf->area_size = count + 1;
+ }
+ len = ISread_n(stream, buf->ptr, count);
+ buf->length = (len > 0) ? len : 0;
+ buf->ptr[buf->length] = '\0';
+ return (len > 0) ? 1 : 0;
+}
+#endif
+
+int
+ISread_n(InputStream stream, char *dst, int count)
+{
+ int len, l;
BaseStream base;
- if (stream == NULL || (base = &stream->base)->iseos)
+ if (stream == NULL || count <= 0)
+ return -1;
+ if ((base = &stream->base)->iseos)
return 0;
- len = buffer_read(&base->stream, buf->ptr, count);
- rest = count - len;
+ len = buffer_read(&base->stream, dst, count);
if (MUST_BE_UPDATED(base)) {
- len = base->read(base->handle, &buf->ptr[len], rest);
- if (len <= 0) {
+ l = (*base->read) (base->handle, &dst[len], count - len);
+ if (l <= 0) {
base->iseos = TRUE;
- len = 0;
+ } else {
+ len += l;
}
- rest -= len;
}
- Strtruncate(buf, count - rest);
- if (buf->length > 0)
- return 1;
- return 0;
+ return len;
}
int
@@ -645,6 +624,7 @@ basic_close(int *handle)
#else
close(*(int *)handle);
#endif
+ xfree(handle);
}
static int
@@ -661,6 +641,7 @@ static void
file_close(struct file_handle *handle)
{
handle->close(handle->f);
+ xfree(handle);
}
static int
@@ -682,6 +663,7 @@ ssl_close(struct ssl_handle *handle)
close(handle->sock);
if (handle->ssl)
SSL_free(handle->ssl);
+ xfree(handle);
}
static int
@@ -717,38 +699,60 @@ static void
ens_close(struct ens_handle *handle)
{
ISclose(handle->is);
+ growbuf_clear(&handle->gb);
+ xfree(handle);
}
static int
ens_read(struct ens_handle *handle, char *buf, int len)
{
- if (handle->s == NULL || handle->pos == handle->s->length) {
+ if (handle->pos == handle->gb.length) {
char *p;
- handle->s = StrmyISgets(handle->is);
- if (handle->s->length == 0)
+ struct growbuf gbtmp;
+
+ ISgets_to_growbuf(handle->is, &handle->gb, TRUE);
+ if (handle->gb.length == 0)
return 0;
- cleanup_line(handle->s, PAGER_MODE);
if (handle->encoding == ENC_BASE64)
- Strchop(handle->s);
+ memchop(handle->gb.ptr, &handle->gb.length);
else if (handle->encoding == ENC_UUENCODE) {
- if (!strncmp(handle->s->ptr, "begin", 5))
- handle->s = StrmyISgets(handle->is);
- Strchop(handle->s);
+ if (handle->gb.length >= 5 &&
+ !strncmp(handle->gb.ptr, "begin", 5))
+ ISgets_to_growbuf(handle->is, &handle->gb, TRUE);
+ memchop(handle->gb.ptr, &handle->gb.length);
}
- p = handle->s->ptr;
+ growbuf_init_without_GC(&gbtmp);
+ p = handle->gb.ptr;
if (handle->encoding == ENC_QUOTE)
- handle->s = decodeQP(&p);
+ decodeQP_to_growbuf(&gbtmp, &p);
else if (handle->encoding == ENC_BASE64)
- handle->s = decodeB(&p);
+ decodeB_to_growbuf(&gbtmp, &p);
else if (handle->encoding == ENC_UUENCODE)
- handle->s = decodeU(&p);
+ decodeU_to_growbuf(&gbtmp, &p);
+ growbuf_clear(&handle->gb);
+ handle->gb = gbtmp;
handle->pos = 0;
}
- if (len > handle->s->length - handle->pos)
- len = handle->s->length - handle->pos;
+ if (len > handle->gb.length - handle->pos)
+ len = handle->gb.length - handle->pos;
- bcopy(&handle->s->ptr[handle->pos], buf, len);
+ memcpy(buf, &handle->gb.ptr[handle->pos], len);
handle->pos += len;
return len;
}
+
+static void
+memchop(char *p, int *len)
+{
+ char *q;
+
+ for (q = p + *len; q > p; --q) {
+ if (q[-1] != '\n' && q[-1] != '\r')
+ break;
+ }
+ if (q != p + *len)
+ *q = '\0';
+ *len = q - p;
+ return;
+}
generated by cgit v1.2.3 (git 2.25.1) at 2024-11-27 00:44:26 +0000