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tools/mpremote: Add seek whence for mounted files. 

Fixes issue #7534.

Signed-off-by: Michel Bouwmans <m.bouwmans@ep-games.eu>
This commit is contained in:
Michel Bouwmans 2021-07-13 10:48:09 +02:00 committed by Damien George
parent 4e39ff221a
commit 7870ec0370
1 changed files with 5 additions and 2 deletions
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7
tools/mpremote/mpremote/pyboardextended.py
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@ -26,6 +26,7 @@ fs_hook_cmds = {
fs_hook_code = """\ fs_hook_code = """\
import uos, uio, ustruct, micropython, usys import uos, uio, ustruct, micropython, usys
SEEK_SET = 0
class RemoteCommand: class RemoteCommand:
def __init__(self, use_second_port): def __init__(self, use_second_port):
@ -213,11 +214,12 @@ class RemoteFile(uio.IOBase):
c.end() c.end()
return n return n
def seek(self, n): def seek(self, n, whence=SEEK_SET):
c = self.cmd c = self.cmd
c.begin(CMD_SEEK) c.begin(CMD_SEEK)
c.wr_s8(self.fd) c.wr_s8(self.fd)
c.wr_s32(n) c.wr_s32(n)
c.wr_s8(whence)
n = c.rd_s32() n = c.rd_s32()
c.end() c.end()
return n return n
@ -459,8 +461,9 @@ class PyboardCommand:
def do_seek(self): def do_seek(self):
fd = self.rd_s8() fd = self.rd_s8()
n = self.rd_s32() n = self.rd_s32()
whence = self.rd_s8()
# self.log_cmd(f"seek {fd} {n}") # self.log_cmd(f"seek {fd} {n}")
self.data_files[fd][0].seek(n) n = self.data_files[fd][0].seek(n, whence)
self.wr_s32(n) self.wr_s32(n)
def do_write(self): def do_write(self):