From: Linus Torvalds Date: Thu, 26 Jan 2012 21:00:45 +0000 (-0800) Subject: Split up file reading from 'parse-xml.c' into 'file.c' X-Git-Url: http://git.tdb.fi/?a=commitdiff_plain;h=4d10bc017ad683ffa3e7e399b9bcb9dcf524d964;p=ext%2Fsubsurface.git Split up file reading from 'parse-xml.c' into 'file.c' We're going to eventually import non-xml files too, so let's begin splitting the logic up. Signed-off-by: Linus Torvalds --- diff --git a/Makefile b/Makefile index 8a5096a..39e1cad 100644 --- a/Makefile +++ b/Makefile @@ -115,7 +115,7 @@ LIBS = $(LIBXML2) $(LIBXSLT) $(LIBGTK) $(LIBGCONF2) $(LIBDIVECOMPUTER) $(EXTRALI OBJS = main.o dive.o profile.o info.o equipment.o divelist.o \ parse-xml.o save-xml.o libdivecomputer.o print.o uemis.o \ - gtk-gui.o statistics.o $(OSSUPPORT).o $(RESFILE) + gtk-gui.o statistics.o file.o $(OSSUPPORT).o $(RESFILE) $(NAME): $(OBJS) $(CC) $(LDFLAGS) -o $(NAME) $(OBJS) $(LIBS) @@ -147,6 +147,9 @@ install-macosx: $(NAME) $(INSTALL) $(ICONFILE) $(MACOSXINSTALL)/Contents/Resources/ $(INSTALL) $(MACOSXFILES)/Subsurface.icns $(MACOSXINSTALL)/Contents/Resources/ +file.o: file.c dive.h + $(CC) $(CFLAGS) $(GLIB2CFLAGS) $(XML2CFLAGS) $(XSLT) -c file.c + parse-xml.o: parse-xml.c dive.h $(CC) $(CFLAGS) $(GLIB2CFLAGS) $(XML2CFLAGS) $(XSLT) -c parse-xml.c diff --git a/dive.h b/dive.h index 52158ad..befa0cd 100644 --- a/dive.h +++ b/dive.h @@ -254,9 +254,11 @@ static inline struct dive *get_dive(unsigned int nr) } extern void parse_xml_init(void); -extern void parse_xml_file(const char *filename, GError **error); +extern void parse_xml_buffer(const char *url, const char *buf, int size, GError **error); extern void set_filename(const char *filename); +extern void parse_file(const char *filename, GError **error); + #ifdef XSLT extern xmlDoc *test_xslt_transforms(xmlDoc *doc); #endif diff --git a/file.c b/file.c new file mode 100644 index 0000000..5db36a8 --- /dev/null +++ b/file.c @@ -0,0 +1,73 @@ +#include +#include +#include +#include +#include + +#include "dive.h" + +struct memblock { + void *buffer; + size_t size; +}; + +static int readfile(const char *filename, struct memblock *mem) +{ + int ret, fd = open(filename, O_RDONLY); + struct stat st; + + mem->buffer = NULL; + mem->size = 0; + + fd = open(filename, O_RDONLY); + if (fd < 0) + return fd; + ret = fstat(fd, &st); + if (ret < 0) + goto out; + ret = -EINVAL; + if (!S_ISREG(st.st_mode)) + goto out; + ret = 0; + if (!st.st_size) + goto out; + mem->buffer = malloc(st.st_size); + ret = -1; + errno = ENOMEM; + if (!mem->buffer) + goto out; + mem->size = st.st_size; + ret = read(fd, mem->buffer, mem->size); + if (ret < 0) + goto free; + if (ret == mem->size) + goto out; + errno = EIO; + ret = -1; +free: + free(mem->buffer); + mem->buffer = NULL; + mem->size = 0; +out: + close(fd); + return ret; +} + +void parse_file(const char *filename, GError **error) +{ + struct memblock mem; + + if (readfile(filename, &mem) < 0) { + fprintf(stderr, "Failed to read '%s'.\n", filename); + if (error) { + *error = g_error_new(g_quark_from_string("subsurface"), + DIVE_ERROR_PARSE, + "Failed to read '%s'", + filename); + } + return; + } + + parse_xml_buffer(filename, mem.buffer, mem.size, error); + free(mem.buffer); +} diff --git a/gtk-gui.c b/gtk-gui.c index 45185c0..5b89265 100644 --- a/gtk-gui.c +++ b/gtk-gui.c @@ -114,7 +114,7 @@ static void file_open(GtkWidget *w, gpointer data) GError *error = NULL; while(filenames != NULL) { filename = filenames->data; - parse_xml_file(filename, &error); + parse_file(filename, &error); if (error != NULL) { report_error(error); @@ -961,7 +961,7 @@ static GtkWidget *xml_file_selector(GtkWidget *vbox, GtkWidget *main_dialog) static void do_import_file(gpointer data, gpointer user_data) { GError *error = NULL; - parse_xml_file(data, &error); + parse_file(data, &error); if (error != NULL) { diff --git a/main.c b/main.c index 67e19b0..eae4ee2 100644 --- a/main.c +++ b/main.c @@ -226,7 +226,7 @@ int main(int argc, char **argv) continue; } GError *error = NULL; - parse_xml_file(a, &error); + parse_file(a, &error); if (error != NULL) { diff --git a/parse-xml.c b/parse-xml.c index cc2d007..2877e3a 100644 --- a/parse-xml.c +++ b/parse-xml.c @@ -4,8 +4,6 @@ #include #include #include -#include -#include #define __USE_XOPEN #include #include @@ -1304,84 +1302,25 @@ static void reset_all(void) import_source = UNKNOWN; } -struct memblock { - void *buffer; - size_t size; -}; - -static int readfile(const char *filename, struct memblock *mem) -{ - int ret, fd = open(filename, O_RDONLY); - struct stat st; - - mem->buffer = NULL; - mem->size = 0; - - fd = open(filename, O_RDONLY); - if (fd < 0) - return fd; - ret = fstat(fd, &st); - if (ret < 0) - goto out; - ret = -EINVAL; - if (!S_ISREG(st.st_mode)) - goto out; - ret = 0; - if (!st.st_size) - goto out; - mem->buffer = malloc(st.st_size); - ret = -1; - errno = ENOMEM; - if (!mem->buffer) - goto out; - mem->size = st.st_size; - ret = read(fd, mem->buffer, mem->size); - if (ret < 0) - goto free; - if (ret == mem->size) - goto out; - errno = EIO; - ret = -1; -free: - free(mem->buffer); - mem->buffer = NULL; - mem->size = 0; -out: - close(fd); - return ret; -} - -void parse_xml_file(const char *filename, GError **error) +void parse_xml_buffer(const char *url, const char *buffer, int size, GError **error) { xmlDoc *doc; - struct memblock mem; - - if (readfile(filename, &mem) < 0) { - fprintf(stderr, "Failed to read '%s'.\n", filename); - if (error) { - *error = g_error_new(g_quark_from_string("subsurface"), - DIVE_ERROR_PARSE, - "Failed to read '%s'", - filename); - } - return; - } - doc = xmlReadMemory(mem.buffer, mem.size, filename, NULL, 0); + doc = xmlReadMemory(buffer, size, url, NULL, 0); if (!doc) { - fprintf(stderr, "Failed to parse '%s'.\n", filename); + fprintf(stderr, "Failed to parse '%s'.\n", url); if (error != NULL) { *error = g_error_new(g_quark_from_string("subsurface"), DIVE_ERROR_PARSE, "Failed to parse '%s'", - filename); + url); } return; } /* we assume that the last (or only) filename passed as argument is a * great filename to use as default when saving the dives */ - set_filename(filename); + set_filename(url); reset_all(); dive_start(); #ifdef XSLT