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Reduce the number of open() and close() to improve performance

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Signed-off-by: wangjianyu3 <wangjianyu3@xiaomi.com>
This commit is contained in:
wangjianyu3 2024-01-24 21:09:50 +08:00 committed by Xiang Xiao
parent 6ac7cbf4d2
commit e3400b2555
1 changed files with 15 additions and 7 deletions
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22
system/fastboot/fastboot.c
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@ -107,6 +107,7 @@ struct fastboot_ctx_s
{ {
int usbdev_in; int usbdev_in;
int usbdev_out; int usbdev_out;
int flash_fd;
size_t download_max; size_t download_max;
size_t download_size; size_t download_size;
size_t download_offset; size_t download_offset;
@ -398,18 +399,20 @@ static void fastboot_flash(FAR struct fastboot_ctx_s *context,
FAR const char *arg) FAR const char *arg)
{ {
char blkdev[PATH_MAX]; char blkdev[PATH_MAX];
int fd;
snprintf(blkdev, PATH_MAX, FASTBOOT_BLKDEV, arg); snprintf(blkdev, PATH_MAX, FASTBOOT_BLKDEV, arg);
fd = fastboot_flash_open(blkdev); if (context->flash_fd < 0)
if (fd < 0)
{ {
fastboot_fail(context, "Flash open failure"); context->flash_fd = fastboot_flash_open(blkdev);
return; if (context->flash_fd < 0)
{
fastboot_fail(context, "Flash open failure");
return;
}
} }
if (fastboot_flash_program(context, fd) < 0) if (fastboot_flash_program(context, context->flash_fd) < 0)
{ {
fastboot_fail(context, "Image flash failure"); fastboot_fail(context, "Image flash failure");
} }
@ -418,7 +421,11 @@ static void fastboot_flash(FAR struct fastboot_ctx_s *context,
fastboot_okay(context, ""); fastboot_okay(context, "");
} }
fastboot_flash_close(fd); if (context->total_imgsize == 0)
{
fastboot_flash_close(context->flash_fd);
context->flash_fd = -1;
}
} }
static void fastboot_erase(FAR struct fastboot_ctx_s *context, static void fastboot_erase(FAR struct fastboot_ctx_s *context,
@ -715,6 +722,7 @@ int main(int argc, FAR char **argv)
goto err_with_in; goto err_with_in;
} }
context.flash_fd = -1;
context.download_buffer = buffer; context.download_buffer = buffer;
context.download_size = 0; context.download_size = 0;
context.download_offset = 0; context.download_offset = 0;